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A widely cited 2006 report estimated that 18% of worldwide greenhouse gas emissions were attributable to cattle, buffalo, sheep, goats, camels, pigs and poultry. However, analysis performed by Goodland, with co-writer Jeff Anhang, an environmental specialist at the World Bank Group’s International Finance Corporation, found that figure to now more accurately be 51%.

a molecule of CO2 exhaled by livestock is no more natural than one from an auto tailpipe.

Today, tens of billions more livestock are exhaling CO2 than in preindustrial days, while Earth’s photosynthetic capacity (its capacity to keep carbon out of the atmosphere by absorbing it in plant mass) has declined sharply as forest has been cleared.

One way in which this will be particularly troublesome for livestock producers will be that crops grown for feed will be refocused on biofuel sources.

Emissions from livestock, largely from burping cows and sheep and their manure, currently make up almost 15% of global emissions. Beef and dairy alone make up 65% of all livestock emissions.

Meat consumption is on track to rise 75% by 2050, and dairy 65%, compared with 40% for cereals. By 2020, China alone is expected to be eating 20m tonnes more of meat and dairy a year.

agricultural emissions will take up the entire world’s carbon budget by 2050, with livestock a major contributor. This would mean every other sector, including energy, industry and transport, would have to be zero carbon, which is described as “impossible”. The Chatham House report concludes: “Dietary change is essential if global warming is not to exceed 2C.”

“This is not a radical vegetarian argument; it is an argument about eating meat in sensible amounts as part of healthy, balanced diets.”

preventing

The federal government encouraged this practice from the start. The Timber Culture Act passed in 1873, permitted homesteaders to claim an additional 160 acres of free land by planting trees on at least a quarter of it. Decades later, desperate to curb the Dust Bowl, President Franklin Roosevelt channeled roughly $14 million — mostly via emergency relief and the Works Progress Administration — to the Prairie States Forestry Project, resulting in nearly 19,000 miles of windbreaks throughout the Great Plains, many of them composed of Eastern redcedar.

Still today, the Department of Agriculture subsidizes the planting of redcedar for everything from windbreaks to wildlife habitat. State programs provide similar cost-share programs, and it’s from all of these plantings (and more) the spread — or the “encroachment,” as ecologists call it — generally begins.

In 2018, the rangeland ecologist Dirac Twidwell and his colleagues at the University of Nebraska began the Eastern Redcedar Science Literacy Project to catalog the fallout

Eastern redcedar can transform a thriving tallgrass prairie into a closed canopy woodland in just 40 years. In the process, critical biodiversity is evicted from the landscape. The majority of grassland bird species are no longer present where Eastern redcedar cover exceeds just 10 percent of land cover. Beyond 30 percent, most small mammals vanish, too. And as too many ranchers and other land managers can now attest, both forage production and plant diversity take a nosedive in the Green Glacier’s wake.

Allergies. Wildfires. Tick-borne disease. All of these problems climb while stream flow and groundwater recharge rates often decline. True, a juniper woodland sequesters more carbon. But the grassland it muscled out was a more reliable carbon sink, storing more than 90 percent of its capture underground, safe from wildfires that would send that carbon into the atmosphere. From virtually every angle — environmental or economic, livestock or literature, air quality or landscape aesthetics — the Green Glacier is a problem.

“The Great Plains biome is dying,” Dr. Twidwell said. “Losing grasslands at this scale is akin to losing tropical rainforests or coral reefs.”

for decades now, discussion about the Green Glacier has been largely relegated to the dusty confines of trade journals and agricultural conventions. Perhaps this is because the vast majority of our remaining grasslands are privately owned. Perhaps, as our forests burn and our levees break, there is little sympathy left for the livestock industry, responsible for roughly 15 percent of the world’s greenhouse gas emissions — never mind the many effects of tree encroachment that bleed far beyond the ranch.

If America wants to preserve what’s left of Cather’s spiritual homeland, something greater than what Dr. Twidwell calls “postage-stamp prairies,” then “the clock is ticking,”

The good news is that prescribed fire, where done repeatedly, has proved to effectively halt the Green Glacier’s spread. In fact, the Loess Canyons Rangeland Alliance, a group of neighboring landowners in southwestern Nebraska, is one of the first documented groups to halt the encroachment on a regional scale.

Climate change will make those threats even worse, as floods, drought, storms and other types of extreme weather threaten to disrupt, and over time shrink, the global food supply

food shortages could lead to an increase in cross-border migration.

A particular danger is that food crises could develop on several continents at once

“The potential risk of multi-breadbasket failure is increasing,” she said. “All of these things are happening at the same time.”

The report also offered a measure of hope, laying out pathways to addressing the looming food crisis, though they would require a major re-evaluation of land use and agriculture worldwide as well as consumer behavior

Proposals include increasing the productivity of land, wasting less food and persuading more people to shift their diets away from cattle and other types of meat.

“People’s lives will be affected by a massive pressure for migration,” said Pete Smith, a professor of plant and soil science at the University of Aberdeen and one of the report’s lead authors. “People don’t stay and die where they are. People migrate.”

activities such as draining wetlands — as has happened in Indonesia and Malaysia to create palm oil plantations, for example — is particularly damaging. When drained, peatlands, which store between 530 and 694 billion tons of carbon dioxide globally, release that carbon dioxide back into the atmosphere.

Between 2010 and 2015 the number of migrants from El Salvador, Guatemala and Honduras showing up at the United States’ border with Mexico increased fivefold, coinciding with a dry period that left many with not enough food and was so unusual that scientists suggested it bears the signal of climate change

As a warming atmosphere intensifies the world’s droughts, flooding, heat waves, wildfires and other weather patterns, it is speeding up the rate of soil loss and land degradation, the report concludes.

Higher concentrations of carbon dioxide in the atmosphere

will also reduce food’s nutritional quality, even as rising temperatures cut crop yields and harm livestock

In some cases, the report says, a changing climate is boosting food production because, for example, warmer temperatures will mean greater yields of some crops at higher latitudes. But on the whole, the report finds that climate change is already hurting the availability of food because of decreased yields and lost land from erosion, desertification and rising seas

Overall if emissions of greenhouse gases continue to rise, so will food costs, according to the report, affecting people around the world.

“You’re sort of reaching a breaking point with land itself and its ability to grow food and sustain us,”

agriculture itself is also exacerbating climate change.

the window to address the threat is closing rapidly

Every 2.5 acres of peatlands release the carbon dioxide equivalent of burning 6,000 gallons of gasoline

And the emissions of carbon dioxide continues long after the peatlands are drained. Of the five gigatons of greenhouse gas emissions that are released each year from deforestation and other land-use changes, “One gigaton comes from the ongoing degradation of peatlands that are already drained,”

(By comparison, the fossil fuel industry emitted about 37 gigatons of carbon dioxide last year, according to the institute.)

cattle are significant producers of methane, another powerful greenhouse gas, and an increase in global demand for beef and other meats has fueled their numbers and increased deforestation in critical forest systems like the Amazon

each year, the amount of forested land that is cleared — much of that propelled by demand for pasture land for cattle — releases the emissions equivalent of driving 600 million cars

The authors urge changes in how food is produced and distributed, including better soil management, crop diversification and fewer restrictions on trade

They also call for shifts in consumer behavior, noting that at least one-quarter of all food worldwide is wasted

But protecting the food supply and cutting greenhouse emissions can also come into conflict with each other, forcing hard choices. For instance, the widespread use of strategies such as bioenergy — like growing corn to produce ethanol — could lead to the creation of new deserts or other land degradation

The report also calls for institutional changes, including better access to credit for farmers in developing countries and stronger property rights

Planting as many trees as possible would reduce the amount of greenhouse gases in the atmosphere by about nine gigatons each year

But it would also increase food prices as much as 80 percent by 2050.

“We cannot plant trees to get ourselves out of the problem that we’re in,

“The trade-offs that would keep us below 1.5 degrees, we’re not talking about them. We’re not ready to confront them yet.”

Preventing global temperatures from rising more than 1.5 degrees Celsius is likely to require both the widespread planting of trees as well as “substantial” bioenergy to help reduce the use of fossil fuels

“Above 2 degrees of global warming there could be an increase of 100 million or more of the population at risk of hunger,” Edouard Davin, a researcher at ETH Zurich and an author of the report, said by email. “We need to act quickly

The same is true for planting large numbers of trees (something often cited as a powerful strategy to pull carbon dioxide out of the atmosphere), which can push crops and livestock onto less productive land

“Agricultural practices that include indigenous and local knowledge can contribute to overcoming the combined challenges of climate change, food security, biodiversity conservation, and combating desertification and land degradation,”

an average of three people were killed per week defending their land in 2018, with more than half of them killed in Latin America.

the longer policymakers wait, the harder it will be to prevent a global crisis. “Acting now may avert or reduce risks and losses, and generate benefits to society,” the authors wrote. Waiting to cut emissions, on the other hand, risks “irreversible loss in land ecosystem functions and services required for food, health, habitable settlements and production.”

The planet has multiple morbidities, some of which will make this coronavirus look, by comparison, easy to treat

how will we feed ourselves?

A large body of evidence is beginning to accumulate showing how climate breakdown is likely to affect our food supply

In his forthcoming book, Our Final Warning, Mark Lynas explains what is likely to happen to our food supply with every extra degree of global heating. He finds that extreme danger kicks in somewhere between 3C and 4C above pre-industrial levels.

At this point, a series of interlocking impacts threatens to send food production into a death spiral. Outdoor temperatures become too high for humans to tolerate, making subsistence farming impossible across Africa and South Asia. Livestock die from heat stress. Temperatures start to exceed the lethal thresholds for crop plants across much of the world, and major food producing regions turn into dust bowls.

Simultaneous global harvest failure – something that has never happened in the modern world – becomes highly likely.

Every food-producing sector claims that its own current practices are sustainable and don’t need to change

even if every nation keeps its promises under the Paris agreement, which currently seems unlikely, global heating will amount to between 3C and 4C.

Thanks to our illusion of security, we are doing almost nothing to anticipate this catastrophe, let alone prevent it. This existential issue scarcely seems to impinge on our consciousness

A food deficit could result in billions starving. Hoarding will happen, as it always has, at the global level, as powerful people snatch food from the mouths of the poor.

But this is just one of our impending crises. Antibiotic resistance is, potentially, as deadly as any new disease. One of the causes is the astonishingly profligate way in which these precious medicines are used on many livestock farms

Pharmaceutical companies are failing to invest sufficiently in the search for new drugs. If antibiotics cease to be effective, surgery becomes almost impossible

Childbirth becomes a mortal hazard once more. Chemotherapy can no longer be safely practised. Infectious diseases we have comfortably forgotten become deadly threats. We should discuss this issue as often as we talk about football. But again, it scarcely registers.

Sunk costs within the fossil fuel industry, farming, banking, private healthcare and other sectors prevent the rapid transformations we need. Money becomes more important than life.

this could be the moment when we begin to see ourselves, once more, as governed by biology and physics, and dependent on a habitable planet. Never again should we listen to the liars and the deniers. Never again should we allow a comforting falsehood to trounce a painful truth. No longer can we afford to be dominated by those who put money ahead of life. This coronavirus reminds us that we belong to the material world.

until now, the planet’s natural defense systems were better at fighting them off.

Today, climate warming is demolishing those defense systems, driving a catastrophic loss in biodiversity that, when coupled with reckless deforestation and aggressive conversion of wildland for economic development, pushes farms and people closer to the wild and opens the gates for the spread of disease.

ignoring how climate and rapid land development were putting disease-carrying animals in a squeeze was akin to playing Russian roulette.

the virus is believed to have originated with the horseshoe bat, part of a genus that’s been roaming the forests of the planet for 40 million years and thrives in the remote jungles of south China, even that remains uncertain.

China for years and warning that swift climate and environmental change there — in both loss of biodiversity and encroachment by civilization — was going to help new viruses jump to people.

. Roughly 60% of new pathogens come from animals — including those pressured by diversity loss — and roughly one-third of those can be directly attributed to changes in human land use, meaning deforestation, the introduction of farming, development or resource extraction in otherwise natural settings

Vector-borne diseases — those carried by insects like mosquitoes and ticks and transferred in the blood of infected people — are also on the rise as warming weather and erratic precipitation vastly expand the geographic regions vulnerable to contagion.

Climate is even bringing old viruses back from the dead, thawing zombie contagions like the anthrax released from a frozen reindeer in 2016, which can come down from the arctic and haunt us from the past.

It is demonstrating in real time the enormous and undeniable power that nature has over civilization and even over its politics.

it also makes clear that climate policy today is indivisible from efforts to prevent new infectious outbreaks, or, as Bernstein put it, the notion that climate and health and environmental policy might not be related is “a ​dangerous delusion.”

The warming of the climate is one of the principal drivers of the greatest — and fastest — loss of species diversity in the history of the planet, as shifting climate patterns force species to change habitats, push them into new regions or threaten their food and water supplies

What’s known as biodiversity is critical because the natural variety of plants and animals lends each species greater resiliency against threat and together offers a delicately balanced safety net for natural systems

As diversity wanes, the balance is upset, and remaining species are both more vulnerable to human influences and, according to a landmark 2010 study in the journal Nature, more likely to pass along powerful pathogens.

even incremental and seemingly manageable injuries to local environments — say, the construction of a livestock farm adjacent to stressed natural forest — can add up to outsized consequences.

Coronaviruses like COVID-19 aren’t likely to be carried by insects — they don’t leave enough infected virus cells in the blood. But one in five other viruses transmitted from animals to people are vector-borne

the number of species on the planet has already dropped by 20% and that more than a million animal and plant species now face extinction.

Americans have been experiencing this phenomenon directly in recent years as migratory birds have become less diverse and the threat posed by West Nile encephalitis has spread. It turns out that the birds that host the disease happen to also be the tough ones that prevail amid a thinned population

as larger mammals suffer declines at the hands of hunters or loggers or shifting climate patterns, smaller species, including bats, rats and other rodents, are thriving, either because they are more resilient to the degraded environment or they are able to live better among people.

It is these small animals, the ones that manage to find food in garbage cans or build nests in the eaves of buildings, that are proving most adaptable to human interference and also happen to spread disease.

Warmer temperatures and higher rainfall associated with climate change — coupled with the loss of predators — are bound to make the rodent problem worse, with calamitous implications.

As much as weather changes can drive changes in species, so does altering the landscape for new farms and new cities. In fact, researchers attribute a full 30% of emerging contagion to what they call “land use change.”

As the global population surges to 10 billion over the next 35 years, and the capacity to farm food is stressed further again by the warming climate, the demand for land will only get more intense.

Already, more than one-third of the planet’s land surface, and three-quarters of all of its fresh water, go toward the cultivation of crops and raising of livestock. These are the places where infectious diseases spread most often.

The U.S. Centers for Disease Control and Prevention says that fully three-quarters of all new viruses have emerged from animals

Almost every major epidemic we know of over the past couple of decades — SARS, COVID-19, Ebola and Nipah virus — jumped to people from wildlife enduring extreme climate and habitat strain, and still, “we’re naive to them,” she said. “That puts us in a dangerous place.”

A 2008 study in the journal Nature found nearly one-third of emerging infectious diseases over the past 10 years were vector-borne, and that the jumps matched unusual changes in the climate

Ticks and mosquitoes now thrive in places they’d never ventured before. As tropical species move northward, they are bringing dangerous pathogens with them.

by 2050, disease-carrying mosquitoes will ultimately reach 500 million more people than they do today, including some 55 million more Americans.

In 2013, dengue fever — an affliction affecting nearly 400 million people a year, but normally associated with the poorest regions of Africa — was transmitted locally in New York for the first time.

“The long-term risk from dengue may be much higher than COVID,

only 15% of the planet’s forests remain intact. The rest have been cut down, degraded or fragmented to the point that they disrupt the natural ecosystems that depend on them.

it’s only a matter of time before other exotic animal-driven pathogens are driven from the forests of the global tropics to the United States or Canada or Europe because of the warming climate.

it will also shape how easily we get sick. According to a 2013 study in the journal PLOS Currents Influenza, warm winters were predictors of the most severe flu seasons in the following year

Even harsh swings from hot to cold, or sudden storms — exactly the kinds of climate-induced patterns we’re already seeing — make people more likely to get sick.

The chance of a flu epidemic in America’s most populated cities will increase by as much as 50% this century, and flu-related deaths in Europe could also jump by 50%.

Slow action on climate has made dramatic warming and large-scale environmental changes inevitable, he said, “and I think that increases in disease are going to come along with it.”

By late 2018, epidemiologists there were bracing for what they call “spillover,” or the failure to keep a virus locally contained as it jumped from the bats and villages of Yunnan into the wider world.

In late 2018, the Trump administration, as part of a sweeping effort to bring U.S. programs in China to a halt, abruptly shut down the research — and its efforts to intercept the spread of a new novel coronavirus along with it. “We got a cease and desist,” said Dennis Carroll, who founded the PREDICT program and has been instrumental in global work to address the risks from emerging viruses. By late 2019, USAID had cut the program’s global funding.

The loss is immense. The researchers believed they were on the cusp of a breakthrough, racing to sequence the genes of the coronaviruses they’d extracted from the horseshoe bat and to begin work on vaccines.

They’d campaigned for years for policymakers to fully consider what they’d learned about how land development and climate changes were driving the spread of disease, and they thought their research could literally provide governments a map to the hot spots most likely to spawn the next pandemic.

They also hoped the genetic material they’d collected could lead to a vaccine not just for one lethal variation of COVID, but perhaps — like a missile defense shield for the biosphere — to address a whole family of viruses at once

Carroll said knowledge of the virus genomes had the potential “to totally transform how we think about future biomedical interventions before there’s an emergence.

PREDICT’s staff and advisers have pushed the U.S. government to consider how welding public health policy with environmental and climate science could help stem the spread of contagions.

Since Donald Trump was elected, the group hasn’t been invited back.

What Daszak really wants — in addition to restored funding to continue his work — is the public and leaders to understand that it’s human behavior driving the rise in disease, just as it drives the climate crisis

“We turn a blind eye to the fact that our behavior is driving this,” he said. “We get cheap goods through Walmart, and then we pay for it forever through the rise in pandemics. It’s upside down.”

Satellite images and field tests show that 13 percent of the land has already lost its fertility, while nearly the rest of the region is at risk.

Brazil’s northeast, the world’s most densely populated drylands, with roughly 53 million people, is among the most at risk.

Instead, higher temperatures and less rain combine with deforestation and overfarming to leave the soil parched, lifeless and nearly devoid of nutrients, unable to support crops or even grass to feed livestock.

Increasing deforestation in Brazil has alarmed officials around the world because it threatens the Amazon rain forest’s ability to pull carbon from the atmosphere.

Those entrepreneurs began paying landowners for their mud, and in a few years, dozens of ceramics plants employed hundreds of people.

At his small plant recently, a few dozen laborers laid out thousands of tiles to dry in the midday sun.

Factories make the tiles by mixing water with clay, and then firing the result in a wood-burning oven. All those ingredients — water, wood and clay — are in short supply here.

The operation consumes 60 to 75 cubic meters of wood a week, or enough to fill five large dump trucks.

That can have a devastating effect. The soil and clay they extract is crucial for retaining a proper balance of nutrients and moisture in the surrounding land.

In 2010, during another difficult dry season, Mr. Dantas said his family almost ran out of money. To feed themselves and their cattle, they decided to cash in on their mud.

But in 2010, instead of planting, the family watched four men with shovels excavate and haul away the soil. It took them three months. They paid about $3,500 for the clay.

“why not go whole hog” (forgive me) “and advocate a strictly vegan diet?” Isn’t being a part-time vegan, the more strident demand, like being a little bit pregnant?

You might think of patterns of eating as falling on one point or another along a spectrum, and moving toward the plant-based end of that spectrum — as opposed to the end represented by Morgan Spurlock’s “super-sized” diet — is almost always beneficial.[7] It is about eating better, or well, not perfectly, and it must be said that “perfectly” has not yet been defined.

This much is known, now: We produce most animal products in deplorable conditions, and some of our health and environmental problems can be traced both to dominant production methods and our overconsumption. But we like to eat them, and they’re a pleasurable and even healthy part of many traditional diets and even sound agricultural practices.

bruise, brown, wilt, oxidize, ding, or discolor and that is apparently something American shoppers will not abide. For an American family of four, the average value of discarded produce is nearly $1,600 annually

(Globally, the United Nations Food and Agriculture Organization estimates that one-third of all food grown is lost or wasted, an amount valued at nearly $3 trillion. )

“Grocery stores routinely trash produce for being the wrong shape or containing minor blemishes,

“Vast quantities of fresh produce grown in the U.S. are left in the field to rot, fed to livestock or hauled directly from the field to landfill, because of unrealistic and unyielding cosmetic standards.”

“In my mind, the desire for perfect produce came about in the 1940s as housewives adapted to widespread refrigeration and new CPG [consumer packaged goods] products,”

Perfection and manicured foods came to represent safety and new technology.

this obsession might become amplified in an era of high foodie-ism and Instagram where a sort of heirloom airbrushing has taken hold. Writing in The Times in 2014, Pete Wells christened the extension of this phenomenon in restaurants as “camera cuisine,”

in the last year, ‘foodies’ and chefs have catapulted the issue of food waste into popular conversations,” she adds, naming initiatives by chefs and public intellectuals such as Dan Barber and Roy Choi as well as the pu pu platter of coverage of the issue in elite food magazines.

start-ups like the Bay Area’s Imperfect Produce are starting to deliver ugly but otherwise consumable goods at a discount

France has banned supermarkets from throwing away food by directing them to compost or donate all expiring or unsold food.

Germany is focusing on the issue in part by reforming expiration dates, which many argue are arbitrary and problematic.

“My hope is that as food education proliferates, so will an appreciation for ugly fruits and veggies, biodiversity, local crops, and so much more, all of which can help mitigate food waste,”

“Wouldn't it be neat if the power of Instagram was used to share recipes for carrot top pesto and food scrap stock? Or if we had easy-to-use apps for sharing extra produce with neighbors or food pantries? Both ideas I've already seen foodies fiddling with.”

Even the relatively favored areas had rainfall of just 20 to 40 centimeters (8 to 15 inches)—where 20 centimeters (8 inches) is regarded as the absolute minimum to sustain agriculture—and the national average was less than 10 centimeters (4 inches)

Considering only “agricultural Syria,” the population is about five times as dense as Ohio or Belgium, but it does not have Ohio’s or Belgium’s other means of generating income.

Syria is not just a piece of land; it is densely populated. When I first visited Syria in 1946, the total population was less than 3 million. In 2010, it reached nearly 24 million.

The bottom line is that the population/resource ratio is out of balance. While there has been a marginal increase of agricultural land and more efficient cropping with better seed, neither has kept up with population growth.

During Ottoman rule the population was organized in two overlapping ways. First, there was no “Syria” in the sense of a nation-state, but rather provinces (Turkish: pashaliqs) that were centered on the ancient cities. The most important of these were Damascus, which may be the oldest permanently settled city in the world today, and Aleppo.

throughout its centuries of rule, the Ottoman Empire generally was content to have its subjects live by their own codes of behavior. It did not have the means or the incentive to intrude into their daily lives. Muslims, whether Turk or Arab or Kurd, shared with the imperial government Islamic mores and law. Other ethnic/religious “nations” (Turkish: millet) were self-governing except in military and foreign affairs.

the same groups also moved into mainly Muslim cities and towns, where they tended to live in more or less segregated neighborhoods that resembled medieval European urban ghettos or modern American “Little Italys” or “Chinatowns.”

Since this system was spelled out in the Quran and the Traditions (Hadiths) of the Prophet, respecting it was legally obligatory for Muslims. Consequently, when the Syrian state took shape, it inherited a rich, diverse, and tolerant social tradition.

the French created a “Greater” Lebanon from the former autonomous adjunct provinces (Turkish: sanjaqs) of Mount Lebanon and Beirut. To make it their anchor in an otherwise hostile Levant, they aimed both to make it Christian-dominated and big enough to exist as a state. But these aims were incompatible: the populations they added, taken from the pashaliq of Damascus, were mainly Muslim, so the French doomed Lebanon to be a precariously unbalanced society.

the French reversed course. They united the country as defined in the mandate but attempted to change its social and cultural orientation. Their new policy aimed to supplant the common language, Arabic, with French, to make French customs and law the exemplar, to promote Catholicism as a means to undercut Islam, and to favor the minorities as a means to control the Muslim majority. It was inevitable that the native reaction to these intrusions would be first the rise of xenophobia and then the spread of what gradually became a European style of nationalism.

When French policies did not work and nationalism began to offer an alternate vision of political life, the French colonial administration fell back on violence. Indeed throughout the French period—in contrast to the relatively laissez-faire rule of the Ottoman Empire—violence was never far below the outward face of French rule.

the “peace” the French achieved was little more than a sullen and frustrated quiescence; while they did not create dissension among the religious and ethnic communities, the French certainly magnified it and while they did not create hostility to foreigners, they gave the native population a target that fostered the growth of nationalism. These developments have lingered throughout the last 70 years and remain powerful forces today.

in the years after the French were forced out, coup leader after military dictator spoke in nationalist rhetoric but failed to lead his followers toward “the good life.”

for three and a half years, Syria became a part of the United Arab Republic.

Union did not work, so in 1961 Syrians were thrown back on their own resources. A fundamental problem they faced was what it meant to be a Syrian.

The more conservative, affluent, and Westernized nationalists believed that nationhood had to be built not on a religious but on a territorial base. That is, single-state nationalism (Arabic: wataniyah) was the focus of Syria’s statehood.

Their program, however, did not lead to success; its failure opened the way for a redefinition of nationalism as pan-Arab or folk nationalism (Arabic: qawmiyah). As it was codified by the Baath Party, it required that Syria be considered not a separate nation-state but a part of the whole Arab world and be domestically organized as a unified, secular, and at least partly Westernized state. This was a particularly difficult task because the dominant Muslim community, initially as a result of French rule and later as a result of domestic turbulence and foreign interference, regarded the members of the minority communities, particularly the Jewish community, as actual or potential turncoats.

as Syrians struggled for a sense of identity and came to suspect social difference and to fear the cooperation of minorities with foreigners, being an Alawi or a Christian or a Jew put people under a cloud. So, for Hafez al-Assad, the secular, nationalist Baath Party was a natural choice

Their answer was to try to bridge the gaps between rich and poor through a modified version of socialism, and between Muslims and minorities through a modified concept of Islam. Islam, in their view, needed to be considered politically not as a religion but as a manifestation of the Arab nation. Thus, the society they wished to create, they proclaimed, should be modern (with, among other things, equality for women), secular (with faith relegated to personal affairs), and defined by a culture of “Arabism” overriding the traditional concepts of ethnicity.

The “Resurrection” (Arabic: Baath) Party had its origins, like the nationalist-communist Vietnamese movement, in France. Two young Syrians, one a Christian and the other a Sunni Muslim, who were then studying in Paris were both attracted to the grandeur of France and appalled by the weakness of Syria. Like Ho Chi Minh, they wanted to both become like France and get the French out of their nation. Both believed that the future lay in unity and socialism. For Michel Aflaq and Salah Bitar, the forces to be defeated were “French oppression, Syrian backwardness, a political class unable to measure up to the challenge of the times,”

After Assad’s assault in 1982, the Syrian city of Hama looked like the Iraqi city of Fallujah after the American assault in 2004. Acres of the city were submerged under piles of rubble. But then, like Stalingrad after the German attack or Berlin after the Russian siege, reconstruction began. In a remarkable series of moves, Hafez al-Assad ordered the rubble cleared away, built new highways, constructed new schools and hospitals, opened new parks, and even, in a wholly unexpected conciliatory gesture, erected two huge new mosques. He thus made evident what had been his philosophy of government since he first took power: help the Syrian people to live better provided only that they not challenge his rule. In his thought and actions, his stern and often-brutal monopoly of power, he may be compared to the ruling men, families, parties, and establishments of Chinese, Iranian, Russian, Saudi Arabian, Vietnamese, and numerous other regimes.

Hafez al-Assad did not need to wait for leaks of documents: his intelligence services and international journalists turned up dozens of attempts by conservative, oil-rich Arab countries, the United States, and Israel to subvert his government. Most engaged in “dirty tricks,” propaganda, or infusions of money, but it was noteworthy that in the 1982 Hama uprising, more than 15,000 foreign-supplied machine guns were captured, along with prisoners including Jordanian- and CIA-trained paramilitary forces (much like the jihadists who appear so much in media accounts of 2013 Syria). And what he saw in Syria was confirmed by what he learned about Western regime-changing elsewhere.

As Iraq “imploded” in coups beginning in 1958 and morphed into Saddam Husain’s regime, the Syrians came to regard it as an enemy second only to Israel.

During the rule of the two Assads, Syria made considerable progress. By the eve of the civil war, Syrians enjoyed an income (GDP) of about $5,000 per capita. That was nearly the same as Jordan’s, roughly double the income per capita of Pakistan and Yemen, and five times the income of Afghanistan, but it is only a third that of Lebanon, Turkey, or Iran

In 2010, savaged by the great drought, GDP per capita had fallen to about $2,900, according to UN data. Before the civil war—and except in 2008 at the bottom of the drought, when it was zero—Syria’s growth rate hovered around 2 percent,

In social affairs, nearly 90 percent of Syrian children attended primary or secondary schools and between eight and nine in 10 Syrians had achieved literacy. On these measures, Syria was comparable to Iran, Saudi Arabia, and Libya despite having far fewer resources to employ.

Like his father, Bashar sought to legitimize his regime through elections, but apparently he never intended, and certainly did not find, a way satisfactory (to the public) and acceptable (to his regime) of enlarged political participation.

The lack of political participation, fear of public demands, and severe police measures made the regime appear to be a tyranny

This and its hostility to Israel led to large-scale, if covert, attempts at regime change by outside powers including the United States. These acts of subversion became particularly pronounced during the second Bush administration.

between 2 and 3 million of Syria’s 10 million rural inhabitants were reduced to “extreme poverty.”  

Four years of devastating drought beginning in 2006 caused at least 800,000 farmers to lose their entire livelihood and about 200,000 simply abandoned their lands, according to the Center for Climate & Security. In some areas, all agriculture ceased. In others, crop failures reached 75 percent. And generally as much as 85 percent of livestock died of thirst or hunger. Hundreds of thousands of Syria’s farmers gave up, abandoned their farms, and fled to the cities and towns

Syria was already a refuge for a quarter of a million Palestinians and about 100,000 Iraqis who had fled the war and occupation. Formerly prosperous farmers were lucky to get jobs as hawkers or street sweepers. And in the desperation of the times, hostilities erupted among groups that were competing just to survive.

And so tens of thousands of frightened, angry, hungry, and impoverished former farmers were jammed into Syria’s towns and cities, where they constituted tinder ready to catch fire.

Instead of meeting with the protesters and at least hearing their complaints, the government saw them as subversives. The lesson of Hama must have been at the front of the mind of every member of the Assad regime. Failure to act decisively, Hama had shown, inevitably led to insurrection. Compromise could come only after order was assured. So Bashar followed the lead of his father. He ordered a crackdown. And the army, long frustrated by inaction and humiliated by its successive defeats in confrontation with Israel, responded violently. Its action backfired. Riots broke out all over the country. As they did, the government attempted to quell them with military force. It failed. So, during the next two years, what had begun as a food and water issue gradually turned into a political and religious cause.

we don’t know much about the rebels. Hundreds of groups and factions—called “brigades” even when they are just a dozen or so people—have been identified. Some observes believe that there are actually over 1,000 brigades. A reasonable guess is that, including both part-time and full-time insurgents, they number about 100,000 fighters.

In Syria, quite different causes of splits among the brigades are evident. To understand the insurgency there, we must look carefully at the causes. The basis is religion

During the course of the Assad regime, the interpretation of Islam was undergoing a profound change. This was true not only of Syria but also of understanding, practice, and action in many other areas of the world.

tens of thousands of young foreigners flocked to Syria to fight for what they see as a religious obligation (Arabic: fi sabili’llah).

in Syria, while many Muslims found the Assad regime acceptable and many even joined its senior ranks, others saw its Alawi and Christian affiliations, and even its secularism and openness to Muslim participation, insupportable.

The foreign jihadists, like the more recent nationalists, put their emphasis on a larger-than-Syria range. For them, it is a folk nationalism not only to the Arab world but also to the wider world of Islam, affecting a billion people across the globe. What they seek is a restored Islamic world, a Dar ul-Islam, or a new caliphate.

the aims of the two broad groups—the Syrians and the foreigners—have grown apart in a way similar to the split that occurred in Arab nationalism. The Syrians focus on Syria and seek the overthrow of the Assad regime much as their fathers and grandfathers focused on the task of getting the French out of their country—their watan. Their nationalism is single-country oriented

all the rebels regard the conflict in Syria as fundamentally a religious issue. Particularly for the native rebels, as I have pointed out, the religious issue is overlaid by ethnic complexities.

It would be a mistake to regard the Syrian war, as some outside observers have done, as a fight between the forces of freedom and tyranny. If the opponents of the regime are fighting for some form of democracy, they have yet to make their voices heard.

as in Afghanistan, they have fought one another over territory, access to arms, leadership, and division of spoils as bitterly as they have fought their proclaimed enemy. This fracturing has made them impossible to defeat—as the Russians experienced in Afghanistan—but also, so far at least, incapable of governing on a national scale. But they are moving in that direction.

All observers agree that the foreign-controlled and foreign-constituted insurgent groups are the most coherent, organized, and effective. This is little short of astonishing as they share no common language and come from a wide variety of cultures.

Paradoxically, governments that would have imprisoned the same activists in their own countries have poured money, arms, and other forms of aid into their coffers. The list is long and surprising in its makeup: it includes Turkey; the conservative Arab states, particularly Qatar and Saudi Arabia; the EU member states; and the U.S.

The United States has a long history of covertly aiding insurgents in Syria, and has engaged in propaganda, espionage, and various sorts of dirty tricks. The rebels, naturally, have regarded the aid they’ve received as insufficient, while the government has regarded it as a virtual act of war. Both are right: it has not been on a scale that has enabled the rebels to win, but it is a form of action that, had another country engaged in it, seeking to overthrow the government, any American or European administration would have regarded as an act of war under international law.

Such covert intervention, and indeed overt intervention, is being justified on two grounds, the first being that the Syrian government is a tyranny. By Western standards, it is undoubtedly an authoritarian regime

However, the standards Western nations proclaim have been applied in a highly selective way. The EU and the U.S. enjoy cordial and mutually beneficial relations with dozens of tyrannical governments including most of the countries now attempting to regime-change Syria.              

Senior rebels have publicly threatened to carry out a genocide of the country’s main ethnic/religious minority, the Alawis. Scenes being enacted in Syria today recall the massacres and tortures of the wars of religion in 16th- and 17th-century Europe.

Most urgent in the minds of the EU and the U.S. is the second justification for intervention: the Syrian government is charged with using illegal chemical weapons. This is a very serious charge. However, doubts remain about who actually used the weapons. And, more importantly, even though the weapons are indeed horrible and are now generally considered illegal, several other states (the U.S., Israel, Egypt, and Iraq) have used them. Terrible as they are, they are only a small part of the Syrian problem—more than 99 percent of the casualties and all of the property damage in the war have been the result of conventional weapons. Getting rid of chemical weapons will neither in and of itself stop the war nor create conditions favorable to a settlement.

the cost of the war has been immense. And, of course, it is not over. We have only guesses on the total so far. One estimate is that the war has cost Syria upwards of $150 billion. Whole cities now resemble Stalingrad or Berlin in World War II. More than 2 million people have fled abroad while more than 4 million are internal refugees, remaining in Syria.

Lebanon. Even though there is little fighting there, the conflict in Syria is estimated to have cost that little country about $7.5 billion and doubled unemployment to 20 percent. About 1 million Lebanese were already judged by the World Bank as “poor,” and an additional 170,000 are now thought to have been pushed into poverty. The Syrian refugee population in the country has reached at least 1 million, making Syrians now almost a third of the total Lebanese population.

In Jordan, the story is similar. Half a million refugees are camped out there. One refugee encampment in the country houses over 100,000 people and has become Jordan’s fifth-largest city

However reprehensible the Syrian government may be in terms of democracy, it has not only given refugees and minorities protection but also maintained the part of Syria that it controls as a secular and religiously ecumenical state.

Tragic as these numbers are—the worst for nearly a century—factored into them is that Syria has lost the most precious assets of poor countries: most of the doctors and other professionals who had been painstakingly and expensively educated during the last century

Even more “costly” are the psychological traumas: a whole generation of Syrians have been subjected to either or both the loss of their homes and their trust in fellow human beings. Others will eventually suffer from the memory of what they, themselves, have done during the fighting. Comparisons are trivial and probably meaningless, but what has been enacted—is being enacted—in Syria resembles the horror of the Japanese butchery of Nanjing in World War II and the massacres in the 1994 Hutu-Tutsi conflict in Rwanda.

How the victims and the perpetrators can be returned to a “normal life” will be the lingering but urgent question of coming generations in Syria and elsewhere.

one in four or five people in the world today are Muslim: roughly 1.4 billion men, women, and children. That whole portion of the world’s population has its eyes on Syria. What happens there is likely to have a ripple effect across Asia and Africa. Thus, even though it is a small and poor country, Syria is in a sense a focal point of world affairs.

Unlike the Iraq and Afghan wars, the Syrian conflict will also have a “blowback” effect on the countries from which the Muslim fundamentalist insurgents come. It is in recognition of this fact that Russian President Vladimir Putin decided to intervene in the Syrian war.

Even if fighting dies down, “lasting and bitter war,” like the wars in Iraq and Afghanistan—regardless of what American and European politicians say or even hope—will necessarily involve “boots on the ground.” That is, it will be fought with guerrilla and terrorist tactics on the rebel side against the now-typical counterinsurgency methods on the other side.

the new studies were “a major game-changer. To me, it marks a new phase in ancient DNA research.”

Until about 9,000 years ago, Europe was home to a genetically distinct population of hunter-gatherers, the researchers found. Then, between 9,000 and 7,000 years ago, the genetic profiles of the inhabitants in some parts of Europe abruptly changed, acquiring DNA from Near Eastern populations.

Archaeologists have long known that farming practices spread into Europe at the time from Turkey. But the new evidence shows that it wasn’t just the ideas that spread — the farmers did, too.

the Yamnaya, who left behind artifacts on the steppes of western Russia and Ukraine dating from 5,300 to 4,600 years ago. The Yamnaya used horses to manage huge herds of sheep, and followed their livestock across the steppes with wagons full of food and water.

“You have groups which are as genetically distinct as Europeans and East Asians. And they’re living side by side for thousands of years.”

Between 7,000 and 5,000 years ago, however, hunter-gatherer DNA began turning up in the genes of European farmers. “There’s a breakdown of these cultural barriers, and they mix,”

About 4,500 years ago, the final piece of Europe’s genetic puzzle fell into place. A new infusion of DNA arrived — one that is still very common in living Europeans, especially in central and northern Europe.

The hunter-gatherers didn’t disappear, however. They managed to survive in pockets across Europe between the farming communities.

The closest match to this new DNA, both teams of scientists found, comes from skeletons found in Yamnaya graves in western Russia and Ukraine.

it was likely that the expansion of Yamnaya into Europe was relatively peaceful. “It wasn’t Attila the Hun coming in and killing everybody,”

the most likely scenario was that the Yamnaya “entered into some kind of stable opposition” with the resident Europeans that lasted for a few centuries. But then gradually the barriers between the cultures eroded.

the Yamnaya didn’t just expand west into Europe, however. The scientists examined DNA from 4,700-year-old skeletons from a Siberian culture called the Afanasievo. It turns out that they inherited Yamnaya DNA, too.

was surprised by the possibility that Yamnaya pushed out over a range of about 4,000 miles. “

For decades, linguists have debated how Indo-European got to Europe. Some favor the idea that the original farmers brought Indo-European into Europe from Turkey. Others think the language came from the Russian steppes thousands of years later.

he did think the results were consistent with the idea that the Yamnaya brought Indo-European from the steppes to Europe.

The eastward expansion of Yamnaya, evident in the genetic findings, also supports the theory, Dr. Willerslev said. Linguists have long puzzled over an Indo-European language once spoken in western China called Tocharian. It is only known from 1,200-year-old manuscripts discovered in ancient desert towns. It is possible that Tocharian was a vestige of the eastern spread of the Yamnaya.

the new studies were important, but were still too limited to settle the debate over the origins of Indo-European. “I don’t think we’re there yet,” he said.

Dr. Heggarty speculated instead that early European farmers, the second wave of immigrants, may have brought Indo-European to Europe from the Near East. Then, thousands of years later, the Yamnaya brought the language again to Central Europe.

fear experienced during slaughter significantly elevates meat's levels of stress hormones—adrenaline, cortisol, and other steroids. Studies on human consumption of artificial growth hormones, which are believed by many to affect our reproductive systems and other bodily processes, have already resulted in policy changes in many countries, including those that make up the E.U. Attention is now turning to these naturally occurring fear-induced hormones as scientists worry that their consumption causes similar problems.

impounded, its crew deported

The vessel is registered and flagged under multiple countries, but it is one of 31 listed as being owned by North Korea, Philippine

One component of the new sanctions requires countries to inspect all cargo passing through their territory to or from North Korea

. The sanctions are the result of a United Nations Security Council resolution passed Wednesday, following a North Korean nuclear test on Jan. 6 and a long-range rocket test on Feb. 7.

“The world is concerned over North Korea’s nuclear weapons program and as a member of the U.N., the Philippines has to do its part to enforce the sanctions

North Korean citizens and was in the Philippines to unload a shipment of agricultural byproducts often used as livestock feed.

and found no prohibited items

One of these groups can be traced as far back as 35,000 years, thanks to a skeleton discovered at a site in Belgium called Goyet. The Goyet-related people spread across Europe, only to be replaced on much of the continent near the end of the Ice Age by a genetically distinct population. The earliest sign of the second group appears 14,000 years ago, known to researchers by DNA in a skeleton at an Italian site called Villabruna.

the Goyet and Villabruna people coexisted. Hunter-gatherers across the peninsula had a mixture of ancestry from the two peoples.

But whatever solitude Iberia might have offered came to an end about 7,500 years ago, when new people arrived with crops and livestock. These first farmers, originally from Anatolia, brought with them a distinctive genetic signature.

Ninety percent of the DNA from the later skeletons derives from the Anatolian farmers; 10 percent comes from the hunter-gatherers.

Starting about 6,000 years ago, Dr. Olalde and his colleagues found, hunter-gatherer ancestry in Iberian farmers actually increased to 20 percent.

A skeleton from an elaborate grave in central Spain about 4,400 years old belonged to a man whose ancestry was 100 percent North African

findings suggest that people were moving into Iberia from Africa more than 3,000 years before the rise of the Roman Empire. “These are cosmopolitan places,”

About 4,500 years ago, still another wave of people arrived, profoundly altering the makeup of Iberia.A few centuries earlier, nomads from the steppes of what is now Russia turned up in Eastern Europe with horses and wagons. They spread across the continent, giving up nomadic life and intermarrying with European farmers.

DNA from the men, however, all traced back to the steppes. The Y chromosomes from the male farmers disappeared from the gene pool.

When they finally reached Iberia, these people spread out far and wide. “They really have an impact on the whole peninsula,”

To archaeologists, the shift is a puzzle.“I cannot say what it is,

he ruled out wars or massacres as the cause. “It’s not a particularly violent time,”

Iberian farmers originally lived in egalitarian societies, storing their wealth together and burying their dead in group graves.

over several centuries, palaces and fortresses began to rise, and power became concentrated in the hands of a few. Dr. Risch speculated that the cultural shift had something to do with the genetic shift

The Bronze Age in Iberia was followed by the Iron Age about 2,800

Iron Age Iberians could trace some of their ancestry to new waves of people arriving from northern and Central Europe, possibly marking the rise of so-called Celtiberian culture on the peninsula.

scientists found a growing amount of North African ancestry in skeletons from the Iron Age. That may reflect trade around the Mediterranean, which brought North Africans to Iberian towns, where they settled down.

North African ancestry increased in Iberia even more after Romans took control. Now the peninsula was part of an empire that thrived on widespread trade. At the same time, people from southern Europe and the Near East also began leaving an imprint

The Basque speak a language that is unrelated to other European tongues. Some researchers have speculated that they descended from a population that had been distinct since the Bronze Age or earlier.Genetically, at least, that doesn’t seem to be the case. Before the Roman era, the Basque had DNA that was indistinguishable from that of other Iron Age Iberians

After the fall of Rome, ancient DNA in Iberia reflects its medieval history. Skeletons from the Muslim era show growing ancestry from both North Africa and sub-Saharan Africa.

The researchers were also able to group Spaniards into five genetic clusters. On a map, these groups form five strips running north to south. Those strips line up neatly with history.

Those native peoples presented both a threat and an opportunity to Sutter

local Nisenan people, and turned them into a militia, outfitting them with uniforms and weapons and training them to defend his land

With the help of his militia, he also enslaved them

did not hesitate to kill Native Americans who did not submit to hard labor

Native Americans weren’t just an economic powerhouse—they were currency. He traded native labor among local rancheros and to new settlers

Sutter’s Mill became ground zero for the Gold Rush of 1849. But even the discovery of gold was facilitated by Sutter’s enslavement and coercion of native peoples

the dirt there was dug by a group of Sutter-controlled Native Americans who knew about the gold, but did not value it

After the presence of gold became known, squatters and thieves overran Sutter’s ranch, destroyed his building, looted his wealth and stole his livestock

his claim to the lands granted to him in 1841 was declared invalid

But perhaps the biggest losers were the Native Americans of Gold Rush-era California

John Sutter had set the stage for their destruction—but his cruelty was just the beginning

“annual average temperatures have increased by 1.8°F across the contiguous United States since the beginning of the 20th century” and that “annual median sea level along the U.S. coast . . . has increased by about 9 inches since the early 20th century as oceans have warmed and land ice has melted.”

he National Climate Assessment warns that global warming could cause a 10 percent decline in gross domestic product and that the “potential for losses in some sectors could reach hundreds of billions of dollars per year by the end of this century.” Iowa and other farm states will be particularly hard hit as crops wilt and livestock die.

Compared with the crushing costs of climate change, the action needed to curb greenhouse-gas emissions is modest and manageabl

a carbon tax would increase average electricity rates from 17 cents to 18 cents per kilowatt-hour. The average household, he writes, would see spending on energy rise “only about $35 per month.” That’s not nothing — but it’s better than allowing climate change to continue unabated

I’ve owned up to the danger. Why haven’t other conservatives? They are captives, first and foremost, of the fossil fuel industry, which outspent green groups 10 to 1 in lobbying on climate change from 2000 to 2016. But they are also captives of their own rigid ideology

it is entirely possible to grow food that’s better for us and grow it in ways that are better for the land. Better land management techniques include limiting the use of fertilizers that contribute to emissions and planting crops that add carbon to the soil.

The way forward, they point out, requires reducing planet-warming emissions, removing carbon from the atmosphere by storing it in trees or soil, and changing diets, especially among the world’s wealthy.

it also requires a hard look at who gets to eat what

when it comes to land use, better forest management has the “largest potential for reducing emissions.”

“Farming must work with nature, not against it,

“The I.P.C.C.’s land report puts a big question mark on the future of industrial agriculture.”

Scientists often refer to these as “natural climate solutions,” and they point out that sequestering carbon in the soil not only helps slow down climate change, it can also make the soil hardier to deal with extreme weather events and ultimately increase crop yields.

The world’s forests are under intense threat, though, especially in the tropics. They are cleared for things we consume, including soy, palm oil and beef cattle

Nowhere is that more stark than in the world’s largest rain forest, the Amazon. Its destruction has increased drastically since Brazil’s far-right president, Jair Bolsonaro, took power with a promise to further open the forest to commercial exploitation.

Livestock can be raised on lands that are too arid to grow crops, they can be fed differently so they produce lower methane emissions and they produce manure that can fertilize soil.

animal protein is vital nourishment for a hungry child and raising animals has been part of the culture and livelihood for millions of people around the world.

But if the heaviest meat eaters in places like the United States and Australia cut back on meat, especially red meat, it would make a big difference.

It is entirely possible to eat well without depriving ourselves. There are tips we can borrow from many traditional cuisines.

Taken together, the amount of food that is wasted and unused accounts for close to a 10th of global emissions.

Curbing food waste is arguably the single most effective thing that can be done at an individual or household level to slow down climate change.