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Between 2017 and 2022, land used to grow vegetables and herbs in greenhouses increased by more than 20 million square feet, an 18 percent jump, according to the federal government’s latest agriculture census, released last month

In New England today, about 20 percent of the leafy greens for sale come from controlled-environment agriculture outfits

A study of 12 indoor farms by the nonprofit Resource Innovation Institute found that five of them used as much energy per square foot as a hospital. One vertical farm, an outlier, was guzzling as much energy per square foot as a data center.

These companies advertise their produce as safer, more nutritious and fresher than field-grown produce, since their operations typically skip pesticides and are within a few hours’ drive of major cities. They boast of using one-tenth of the water, a claim backed up by independent research. But they don’t often talk about their energy use; most states don’t require them to report it, and researchers said many are reluctant to share this data.

In Westbrook, Maine, Vertical Harvest is building a four-story, 52,000-square-foot vertical farm and is negotiating a deal to supply it with renewable energy. However, company leaders said they can’t apply the same strategy to their next project, in Detroit, where the state’s energy mix is heavy on fossil fuels and the company can’t choose its electricity provider.

At a time when consumers are seeking more year-round vegetables and berries, and many still have grim memories of the pandemic’s supply-chain crises, states are courting indoor farms that can be built wherever there’s a market for fresh produce.

Pennsylvania Agriculture Secretary Russell Redding said the state has created a “concierge service” to ease the permitting process and help indoor-farm operators with site selection. His agency is focusing on locations in the Lehigh Valley and the south-central region, where there’s proximity to major energy infrastructure and desirable markets in New York, New Jersey and D.C. Some of the state’s top universities are working on technology to speed automation inside vertical farms and greenhouses, he said, while its colleges are training workers for jobs in these facilities.One of Pennsylvania’s selling points is its abundance of energy, most of which is generated by burning natural gas.“These facilities are energy-intensive,” Redding said, “but Pennsylvania is the second-largest net energy supplier to the nation, and we think that’s a differentiator for us.”

Gretchen Schimelpfenig, a civil engineer who has worked to track indoor farms’ energy use, said many American greenhouses could cut their energy use in half. Dutch greenhouse technology has proved that this is possible, she said, but in the United States, there’s little pressure on indoor food growers to do things differently.

Little Leaf Farms, the dominant controlled-environment producer of packaged greens in New England, uses natural gas to heat its greenhouses. To get around this problem, CEO Paul Sellew said the company buys renewable-energy certificates, each of which corresponds to a set amount of energy generated by cleaner sources such as wind or solar. Little Leaf is also planning to build a large solar array on its 180-acre site in McAdoo, Pa., and Sellew said he’s keen on eventually switching to geothermal energy, which is already being used in the Netherlands to heat greenhouses but hasn’t caught on in the United States.

A few vertical-farm companies, like Texas’s Eden Green, have responded to the problem of dirty energy by focusing on efficiency. Eden Green’s hybrid model uses natural light, and the company lessens the burden on its cooling system by using programmed vents to control heat and humidity. Badrina estimated his two farms use about a quarter of the electricity consumed by a typical vertical farm growing leafy greens, which has allowed the company to plant other crops, such as herbs, that are more energy-intensive.

as some companies look to build vertical farms in the swampy Southeast, Badrina said they are likely to face even higher power bills from all the energy needed to counter the region’s heat and humidity.

Only half of 1 percent of the world’s water supply is fresh water in liquid form. The rest is saltwater or frozen into glaciers.

its biggest use, globally, is for food production

“It’s much more useful and easier to live with if the water all comes regularly and without these extremes. But more and more, that’s not the case.”

If surface water is in short supply, people often turn to groundwater, which can be rapidly depleted. In India, nearly 60 percent of the population makes a living from farming. For decades, the government supported farmers by subsidizing the cost of diesel to run water pumps and tractors and by purchasing wheat and rice at an artificially high price. Water demand to irrigate rice and wheat fields is contributing to groundwater depletion in the northern region of Punjab.

“More people demand more water, but also each person demands more water as they get wealthier,” Iceland said. “So as you get wealthier, you move from a more grain and vegetable-oriented diet to a more meat-oriented diet.”

Growing and feeding a cow to create one pound of beef requires as much as 1,800 gallons of water, by some estimates. Calorie-for-calorie, that’s almost eight times as much water as vegetables and 20 times as much water as cereals like wheat and corn.

Water-intensive crops like sugar cane and cotton could also drive demand in sub-Saharan Africa, where water use is expected to double over the next 20 years. Many areas still lack infrastructure to reliably deliver water for irrigation. As those pipelines are built, more farmers will have access to water, which will further strain surface water supplies. Inefficient water use and unsustainable management could lower gross domestic product in the region by 6 percent, according to WRI.

One Saudi company is growing alfalfa in the Arizona desert, pulling from the area’s groundwater supplies. That alfalfa is then shipped overseas to feed cattle in Saudi Arabia, where industrial-scale farming of forage crops has been banned to conserve the nation’s water.

Water is also integral to mining lithium and other minerals used in electric vehicle batteries and renewable energy infrastructure. These critical minerals are often found in arid places like Chile, which is already water-stressed and is projected to use 20 percent more water by 2050, according to WRI.

Since farming accounts for the most water use globally, experts say that micro-sprinklers and drip irrigation instead of flood irrigation are an important solution.

reducing meat and dairy consumption can decrease individual water footprints. Reducing food waste could also help reduce water use. In the United States, more than a third of food ends up in the landfill. The biggest single contributor to food waste is throwing away food at home.

took as its model another such deal between Turkey and Romania in 1936 as well as the better-known Greek-Turkish population exchange of 1923

Forced processes of homogenization are still part of the repertoire of nation-state building, and continue to shape our understanding of world order. Muslim presence in the southeastern periphery of Europe likewise continues to be viewed as problematic and even dangerous: As Piro Rexhepi observed in the book “White Enclosures,” their integration continues to be desirable for security but impossible racially.

Focus on religious identity allowed for a formal incorporation of these rather diverse populations into the Turkish national body. The asylum policy and the settlement laws defined migrants as Turks and those “affiliated with Turkish culture” to encompass all the Slav, Albanian and Greek Muslims, making Turkey­­ a safe haven for Muslim minorities fleeing oppressive regimes.

Dispossession, expulsions and massacres of diverse Muslim populations were already a grim reality of nation-building in southeastern Europe in the 19th century, when Greece, Montenegro, Serbia, Romania and Bulgaria were carved out of Ottoman provinces. In fact, the conquests of Ottoman Europe after 1699 normalized expulsion and compulsory conversion of local Muslims in the lost territories

During the Balkan Wars (1912-1913) Serbia, Montenegro, Greece and Bulgaria invaded the remaining Ottoman territories in Europe. Within several months, an estimated 1 million Muslims vanished, murdered and expelled from the regions taken over by these states. The shocking magnitude of the violence, which continued into World War I, made many Muslims wary of their future in the new nation-states and incited migration to the Ottoman Empire, itself in the midst of conflict.

19th-century definitions of South Slavic brotherhood envisioned Slav Muslims as potentially assimilable, distinguishing between “the Turks” as the non-Slavic Ottomans and “our Turks,” that is, Slav Muslims

so-called reform also included the vast properties of the Islamic pious endowments. Schools, mosques and Sufi lodges lost the land and incomes that were used to operate educational, religious and community services. Some land appropriations were symbolic: The 15th-century Burmali Mosque that visually defined Skopje’s main thoroughfare was simply torn down

In the 1920s, Catholic missionaries working in neighboring Kosovo, a former Ottoman province inhabited by Albanian Muslim and Christian populations and similarly incorporated into Southern Serbia, sent reports of massacres, assassinations, imprisonment and forced labor in a memorandum to the League of Nations, receiving no response.

Ivo Andric, an admired novelist and Yugoslav Nobel laureate, was also one of the highest-ranking Yugoslav diplomats in the interwar period. Eager to finalize the population transfer agreement with Turkey, he advised the government in Belgrade that Turkey was not only interested in the small group of ethnic Turks in Yugoslavia but also populations akin to Turks in their “mentality.” Repeating a constant theme in almost all of Andric’s novels, Muslims were described in his diplomatic correspondence as alien to the Balkans. For Andric, they were “Turks leftover in the territories of our Kingdom.”

over 2,000 Bosnians were settled along with Greek Muslims in the town of Izmir.

Turkish officials, faced with the constant influx of migrants, pursued agreements with the Balkan states that would offset the costs of migrant settlement. The 1934 Balkan Pact included minority clauses that allowed Turkish citizens to sell their properties in their former homelands. Turkish administrators also considered requesting an estimated payment from the Balkan nation-states to match the value of the properties that Balkan Muslims were forced to leave behind.

The Turkish Republic saw population growth as beneficial for economic development and national defense in the long term, as it worked to populate its eastern and western borderlands. Moreover, many of Turkey’s early administrators, as migrants and children of migrants themselves, understood these new waves of migration from a personal perspective.

Laws barred those speaking languages other than Turkish from settling in groups and limited the “foreign” presence to no more than 10% of a municipality, though the realities of the period frequently made these laws impossible to execute. The locals took on much of the burden of helping newcomers, begrudgingly sharing public resources. At the same time, the immigrants provided necessary manpower and introduced new methods in agriculture and certain industries. While Balkan languages largely disappeared with the following generation, enduring legacies, such as Balkan cuisine and music evoking the most personal memories of exile, acquired a place in the Turkish national heritage.

Today, no official recognition of the violent policies of “unmixing” exists, and barely anyone has heard of Yugoslavia’s attempted population transfer of 1939.

the international community’s preferred solutions to “ethnic conflicts” in Bosnia-Herzegovina and Kosovo remain equally tied to principles of nationalist homogenization and demarcation. A century after the foundation of modern Turkey and the first Yugoslavia, the legacies of that era’s mass migration and state violence persist.

Qatari authorities requested 250 Egyptian nationals, including Islamist opposition figure Abdallah al-Sherif, who ran a series of satirical programs on YouTube and Al Jazeera, to leave the country when diplomatic ties were first being established in 2022

With Cairo and Ankara establishing closer ties in 2021, the Turkish government instructed opposition media channels broadcasting from Turkish soil to stop criticizing Sisi and his government.

“Things like climate change, earthquakes, drought — they are of course realities of our lives,” Durusu-Tanrıöver said. “But there are human actions that can be taken to foresee what will happen and behave accordingly.

In the half-century leading up to empire’s collapse, the scientists found, the rings inside the tree trunks gradually start to get narrower — suggesting that water shortages were limiting the junipers’ growth. Chemical analyses of the kind of carbon captured in the wood also showed how drought altered the trees at the cellular level.

cuneiform tablets from that time in which Hittite officials fretted over rising food prices and asked for grain to be sent to their cities. But Manning said the empire — which was known for its elaborate water infrastructure projects and massive grain silos in major cities — should have been able to survive this “low frequency” drought.

between 1198 and 1196 B.C., the region was struck by three of the driest years in the entire 1,000-year-long tree ring record. The abrupt spurt of intensely dry weather may have been more than the Hittites could bear. Within a generation, the empire had dissolved.

“Very few societies ever plan for more than one or two disasters happening consecutively.”

“But I think it’s naive to believe that three years of drought would bring down the storerooms of the Hittite empire,” Weiss said. He argues that the longer-term drying trend, which has been documented in other studies, was probably more significant.

“What’s a crisis for some becomes almost an opportunity for others,” Manning said. “You have adaptation and resilience in the form of new states and new economies emerging.”

Durusu-Tanrıöver blames an unsustainable economy and centralized political system. The intensive agricultural practices required to support the capital city probably exhausted the region’s water resources and weakened surrounding ecosystems

parallels to modern urban areas, which are both major sources of planet-warming pollution and especially vulnerable to climate change impacts like extreme heat.

Some seven percent of people in North Africa -- where densely populated coastlines are among the world's most threatened by rising waters -- live less than five metres (16 feet) above sea level, according to the European Institute of the Mediterranean (IEMed).

Climate-induced urban migration can "increase the pressure on natural resources", according to economist Assem Abu Hatab, "thus leading to social tensions and violent conflict" in a region where agriculture currently accounts for 22 percent of employment.

The Nile Delta—where agriculture employs one-fifth of the country’s workforce and is responsible for 12% of its GDP and much of its food supply—is being hammered by rising sea levels, rising temperatures, and a growing shortage of water.

rapid urbanization and population growth

Climate adaptation solutions that could keep environmental problems from turning existential—fixing the battered and wasteful irrigation network, expanding affordable access to improved seeds and climate-smart farming technologies, and more effective and equitable regulation of urban development on agricultural land—are being rolled out by the government and research groups, but often slower than the pace of climate impacts. That’s left Egypt’s economy and food security exposed to growing risk.

“We’re really squeezed and marginalized here, and the government isn’t helping,” said one farmer down the road from Abdullah, who requested anonymity to speak frankly (with tens of thousands of political prisoners, Egypt’s restrictions on free speech are also gaining prominence ahead of COP27).

his children see no future in agriculture

Around 1805, an Ottoman general named Muhammad Ali took control of the country, and founded the dynasty of kings that would rule—eventually under British colonial supervision—for 150 years. One of Ali’s most enduring marks on the country was the establishment of the first modern network of dams and irrigation canals in the Delta, which allowed tens of thousands of new acres to come under cultivation.

water and land played a crucial role in Nasser’s legacy. 12% of the country’s arable land was owned by the aristocracy; Nasser nationalized this land and distributed it to about 340,000 impoverished rural families. He also further extended Ali’s irrigation network and oversaw construction of the Aswan High Dam, which brought an end to the Nile’s ancient seasonal flooding and fixed the river in its present position, with just two remaining branches forking through the Delta.

Egypt’s population has since more than quadrupled, to 104 million. Yet the flow of the Nile, which supplies more than 95% of the country’s water, has remained more or less constant. In the 1990s water availability fell below the international “water poverty” benchmark of 1,000 cubic meters per person per year.

Egypt has managed that scarcity by meticulously recycling agricultural water and, in recent years, curtailing the production of water-intensive crops like cotton and rice and importing 40% of its wheat and other food staples.

The population is still growing quickly, and could reach 160 million by 2050. The Grand Ethiopian Renaissance Dam that is nearing completion upstream could cut the flow of Nile water into Egypt by a quarter during the as-yet-unknown number of years it will take to fill its reservoir. By 2100, climate change-related heat waves upstream could reduce the Nile’s flow by 75%, Abousabaa said.

rising temperatures and falling rainfall mean crops—which consume 86% of Egypt’s water supply—will require more irrigation to survive.

current annual demand for water is about 35% higher than what the country receives from the Nile, groundwater, and a very small amount of rain—a deficit of about 20 billion cubic meters. To cover it, she said, Egypt will need to use every drop multiple times, aggressively minimize wastage, and boost the supply by investing $2.8 billion in dozens of new desalination plants with the aim to produce 5 billion cubic meters annually by 2050.

On the western fringe of the Delta, farms and suburbs are gradually overtaking the desert as the central Delta grows more crowded. Here, water is even scarcer and the impacts of climate change are more pronounced. But in this and a few other desert areas around Egypt, the government is working to link more than 1.5 million acres to groundwater irrigation, and says it is about one-third of the way there. Land reclamation could take some pressure off the Delta, and sandy soils are well-suited for the production of citrus fruits that are one of Egypt’s most lucrative exports.

The unpredictability makes it difficult to identify solutions, Salah says: “Climate change is like a big black box.”

“For the last two years, with heat wave after heat wave, we lost more than half the crop. It’s really sad.”

The farm relies on groundwater brought up from wells on the property, and Nasrallah says the suburbs are draining the aquifer. In the last four years he has had to dig an extra thirty meters to find water—and deeper wells mean higher electricity bills for pumping. Some wells have dried up altogether. Recently, government officials told him he had to stop watering the grass on a soccer field he built for his workers.

Urbanization is also spreading in the inner Delta, as many farmers decide that constructing housing is more profitable than growing crops. Since the 1970s, about 14% of the Delta’s arable land has been converted to urban development

Individual farms are also becoming smaller with each generation as, in keeping with longstanding Egyptian custom, land is divided among a father’s heirs (with sons traditionally taking a larger share than daughters). Urban development degrades the Delta’s soil and drives more farming into the desert, leaving the entire food system more vulnerable to climate impacts. Land fragmentation leads to the inefficient use of water and other resources and raises the costs of distribution for farmers.

in some cases, the government’s own plans are responsible, most recently in August when thousands of people living on a Nile island near Cairo that was primarily used for farming were evicted to make way for a state-sanctioned development project.

The network started by Muhammed Ali now includes about 33,000 miles of delivery and drainage canals across the country, enough to wrap around the globe, that range in size from small rivers to something a child could hop over. Delta residents say they used to bathe in these canals, drink from them, and raise fish in them. Now many of them, especially at the ends of the network, are polluted with farming chemicals and sewage, and choked with trash.

Between seepage, evaporation, and water wasted by farmers who flood their fields instead of using controlled irrigation hoses, nearly one-third of the country’s water is lost in the irrigation system between the Aswan High Dam and the sea

The soil is dark and appears rich, but is crusted with a visible layer of salt, a problem that affects up to 40% of Egypt’s arable soil.

Fixing the irrigation network is a priority for the government. Eman Sayed from the Irrigation Ministry said her agency has lined about 3,700 miles of canals with concrete in the last two years and is aiming to finish another 12,400 in the next few years. The ministry is also helping farmers cover the cost of installing drip irrigation systems, which researchers at AUC found can cut farmers’ water consumption 61% per year; today such systems cover only one-sixth of arable land in Egypt.

Authorities have also begun to restrict production of water-intensive crops like rice and bananas, although farmers say there is little enforcement of these rules, and both crops are still widely cultivated throughout the Delta.

Egypt has made clear that COP27 will focus primarily on wringing climate finance out of the rich countries that are most responsible for climate change.

On the horizon, an offshore natural gas platform is visible. Egypt, which seized the disruption of Russian energy supplies to Europe because of the Ukraine war as an opening to boost its own exports of natural gas, is now contributing more to the problem than ever before; an independent review of its new climate strategy ranked it “highly insufficient” for averting disastrous levels of carbon emissions.

By 2100, Noureldeen says, sea level rise could inundate nearly 700 square miles of the coastal Delta and displace four million people.

this ground water that was laid down probably 70 to 80 thousand years ago, that’s almost nonrenewable

enabled the port over the past four months to ship close to a million tons of Ukrainian grain, most of it arriving by barge down the Danube River. But with 20 times that amount still blocked in Ukraine and the summer harvest season fast approaching in Romania itself and other countries that use Constanta for their exports, Dolghin said it’s likely the pace of Ukrainian grain shipping through his port will slow

solutions discussed in Kyiv, Iohannis said, included speeding up Danube barge shipments, increasing the speed of their unloading at Romanian ports, new border crossings for trucks with Ukrainian grain and reopening a decommissioned railway linking Romania with Ukraine and Moldova