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Benno Hansen

Big Drought Makes for a Small 'Dead Zone' - NYTimes.com - 0 views

  • this summer’s hypoxic zone in the Gulf of Mexico – the oxygen-devoid area of water colloquially known as the dead zone – covers one of the smallest areas recorded since scientists began measuring the hypoxic zone in 1985
  • “Because of the massive drought in the Midwest, there’s a whole lot less fertilizer being flushed into the rivers and whole lot less water being flushed into the gulf,” said Don Scavia, an aquatic ecologist with the University of Michigan.
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    this summer's hypoxic zone in the Gulf of Mexico - the oxygen-devoid area of water colloquially known as the dead zone - covers one of the smallest areas recorded since scientists began measuring the hypoxic zone in 1985
Skeptical Debunker

Rough Water - 0 views

  • For most of the last 1,500 years, the river supported a sustainable salmon economy. Salmon were at the heart of all the Klamath’s tribal cultures, and Indians were careful not to over-harvest them. Each summer, the lower Klamath’s Yurok and Hoopa tribes blocked the upstream paths of spawning salmon with barriers; then, after ten days of fishing, they removed the barriers, allowing upstream tribes to take their share. As the salmon completed their lifecycle, dying in the waters where they’d been spawned, they enriched the watershed with nutrients ingested during years in the ocean. Among the beneficiaries were at least 22 species of mammals and birds that eat salmon. Even the salmon carcasses that bears left behind on the riverbanks fertilized trees that provided shade along the river’s banks, cooling its waters so that the next generation of vulnerable juvenile salmon could survive. “We tried to go to court, to go through the political process, but it didn’t work. …The big issues were still out there, and we still had to resolve them.” Salmon’s biological family may have started in the age of dinosaurs a hundred million years ago. They’ve survived through heat waves and droughts, in rivers of varying flow, temperature, and nutrient load – but they were as ill-prepared for Europeans’ arrival as the Indians themselves. Gold miners who showed up in the mid-nineteenth century washed entire hillsides into the river with high-pressure hoses and scoured the river’s bed with dredges. Loggers dragged trees down streambeds, causing massive erosion, and dumped sawdust into the river, smothering incubating salmon eggs. Cattle grazed at the river’s edge, causing soil erosion and destroying shade-giving vegetation. Farmers diverted water to feed their crops. The dams were the crowning blows. Between 1908 and 1962, six dams were built on the Klamath. The tallest, the 173-foot-high Iron Gate, is the farthest downstream, and definitively blocked salmon from the river’s upper quarter – after it was built, the river’s salmon population plummeted. In addition, the dams devastated water quality by promoting thick growths of toxic algae in the reservoirs. For Klamath basin farmers, however, the dams were deemed indispensable, as they generated hydropower that made pumping of their irrigation water possible.To the farmers, the potential loss of the dams’ hydropower was considered no less crippling than an end to Klamath-supplied irrigation.
  • For most of the last century, the farmers were oblivious to the damage that dams and water diversions caused downstream, while the tribes and commercial fishermen quietly seethed. The annual salmon run, once so abundant that people caught fish with their hands, was roughly pegged at more than a million fish at its peak; in recent years it has dropped to perhaps 200,000 in good years, and as low as 12,000 – below the minimum believed necessary to sustain the runs – in bad years. Spring Chinook, which once comprised the river’s dominant salmon run, entirely disappeared. Two fish species – the Lost River sucker and the shortnose sucker – that once supported a commercial fishery, were listed as endangered in 1988. Coho salmon were listed as threatened nine years later. All this has had a devastating impact on the tribes. Traditionally able to sustain themselves throughout the year on seasonal migrations of the river’s salmon, trout, and candlefish, tribal members suffered greatly as the runs declined or went extinct. For four decades beginning in 1933, the tribes were barred from fishing the river even as commercial fishermen went unrestricted. Members of the Karuk tribe once consumed an estimated average of 450 pounds of salmon a year; a 2004 survey found that the average had dropped to five pounds a year. The survey linked salmon’s absence to epidemics of diabetes and heart disease that now plague the Karuk. The 2001 cutoff left farmers without irrigated water for the first time in the Klamath Project’s history. Over the next four months, many farmers performed repeated acts of civil disobedience, most notably when a bucket brigade passed pails of banned water from its lake storage to an irrigation canal while thousands of onlookers cheered. The protests attracted Christian-fundamentalist, anti-government, and property rights advocates from throughout the West; former Idaho Congresswoman Helen Chenoweth-Hage likened the farmers’ struggle to the American Revolution.
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  • A year later, it was the tribes’ and fishermen’s turn to experience calamity. According to a Washington Post report, Vice President Dick Cheney ordered Interior Department officials to deliver Klamath water to Project farmers in 2002, even though federal law seemed to favor the fish. Interior Secretary Gale Norton herself opened the head gates launching the 2002 release of water to the Project, while approving farmers chanted, “Let the water flow!” Six months later, the carcasses of tens of thousands of Chinook and Coho salmon washed up on the riverbanks near the Klamath’s mouth, in what is considered the largest adult salmon die-off in the history of the American West. The immediate cause was a parasitic disease called ich, or “white spot disease,” commonly triggered when fish are overcrowded. Given the presence of an unusually large fall Chinook run in 2002 and a paucity of Klamath flow, the 2002 water diversion probably caused the die-off. Yurok representatives said that months earlier they begged government officials to release more water into the lower river to support the salmon, but were ignored. photo courtesy Earthjustice In 2002, low water levels on the Klamath led to the largest adult salmon die-off in the history of the American West. The die-off deprived many tribes-people of salmon and abruptly ended the river’s sport-fishing season, but its impact didn’t fully register until four years later, when the offspring of the prematurely deceased 2002 salmon would have made their spawning run. By then the Klamath stock was so depleted that the federal government placed 700 miles of Pacific Ocean coastline, from San Francisco to central Oregon, off limits to commercial salmon fishing for most of the 2006 fishing season. As a result, commercial ocean fishermen lost about $100 million in income, forcing many into bankruptcy. Even more devastating, a precipitous decline in Sacramento River salmon led to the cancellation of the entire Pacific salmon fishing season in both 2008 and 2009. The Klamath basin was in a permanent crisis. It turned out that desperation and frustration were perfect preconditions for negotiations. “Every one of us would have rolled the others if we could have,” Fletcher, the Yurok leader, says. “We all tried to go to court, to go through the political process, but it didn’t work – we might win one battle today and lose one tomorrow, so nothing was resolved. We spent millions of dollars on attorneys, plane tickets to Washington, political donations, but it didn’t make any of us sleep any better, because the big issues were still out there, and we still had to resolve them.”
  • In January 2008, the negotiators announced the first of two breakthrough Klamath pacts: the 255-page Klamath Basin Restoration Agreement. In it, most of the parties – farmers, three of the four tribes, a commercial fishermen’s group, seven federal and state agencies, and nine environmental groups – agreed to a basic plan. It includes measures to take down the four dams, divert some water from Project farmers to the river in return for guaranteeing the farmers’ right to a smaller amount, restore fisheries habitat, reintroduce salmon to the upper basin, develop renewable energy to make up for the loss of the dams, and support the Klamath Tribes of Oregon’s effort to regain some land lost when Congress “terminated” its reservation in 1962. This was a seminal moment, a genuine reconciliation among tribal and agricultural leaders who discovered that the hatred they’d nursed was unfounded. “Trust is the key,” says Kandra, the Project farmer who went from litigant to negotiator. “We took little baby steps, giving each other opportunities to build trust, and then we got to a place where we could have some really candid discussions, without screaming and yelling – it was like, ‘Here’s how I see the world.’ Pretty valuable stuff. The folks that developed those kinds of relationships got along pretty good.” Still, one crucial ingredient was missing: Unless PacifiCorp agreed to dismantle the dams, river restoration was impossible, and the pact was a well-intentioned, empty exercise. But PacifiCorp now had compelling reasons to consider dam removal. Not only was relicensing going to be expensive, but Klamath tribespeople were becoming an embarrassing irritant, in two consecutive years interrupting Berkshire Hathaway’s annual-meeting/Buffett-lovefests in Omaha with nonviolent protests that won media attention. Also, the Bush administration, customarily no friend of dam removal, signaled its support for a basin-wide agreement. Negotiations between PacifiCorp and mid-level government officials began in January 2008, but made little progress until a meeting in Shepherdstown, West Virginia four months later, when for the first time Senior Interior Department Counselor Michael Bogert presided. As Bogert recently explained, President Bush himself took an interest in the Klamath “because it was early on in his watch that the Klamath became almost a symbol” of river basin dysfunction. To Bush, the decision to support dam removal was a business decision, not an environmental one: The “game-changer,” Bogert said, was the realization that because of the high cost of relicensing, dam removal made good fiscal sense for PacifiCorp. That fact distinguished the Klamath from other dam removal controversies such as the battle over four dams on Idaho’s Snake River, whose removal the Bush administration continued to oppose.
  • In November 2008, when then-Interior Secretary Dirk Kempthorne announced a detailed agreement in principle with PacifiCorp to take down the dams, he acknowledged that he customarily opposed dam removal, but that the Klamath had taught him “to evaluate each situation on a case-by-case basis.” In September 2009, Kempthorne’s successor, Ken Salazar, announced that PacifiCorp and government officials had reached a final agreement. PacifiCorp and the many signers of the earlier Klamath Basin Restoration Agreement then ironed out inconsistencies between the two pacts in a final negotiation that ended with a final deal in January 2010.
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    Maybe the Klamath River basin would have turned itself around without Jeff Mitchell. Back in 2001, at the pinnacle of the conflict over the river's fate, when the Klamath earned its reputation as the most contentious river basin in the country, Mitchell planted a seed. Thanks to a drought and a resulting Interior Department decision to protect the river's endangered fish stocks, delivery of Klamath water to California and Oregon farmers was cut off mid-season, and they were livid. They blamed the Endangered Species Act, the federal government that enforced it, and the basin's salmon-centric Indians who considered irrigation a death sentence for their cultures. The basin divided up, farmers and ranchers on one side, Indians and commercial fishermen on the other. They sued one another, denounced one another in the press, and hired lobbyists to pass legislation undermining one another. Drunken goose-hunters discharged shotguns over the heads of Indians and shot up storefronts in the largely tribal town of Chiloquin, Oregon. An alcohol-fueled argument over water there prompted a white boy to kick in the head of a young Indian, killing him.
Benno Hansen

BBC NEWS | Science & Environment | Climate fixes 'pose drought risk' - 0 views

  • "if geo-engineering studies focus too heavily on warming, critical risks associated with such possible "cures" will not be evaluated appropriately"
  • climate change is about much more than changes in temperature. So using temperature alone to monitor the effects of geo-engineering could be dangerous.
  • current climate models tend to underestimate the effects on precipitation of both greenhouse gases and of volcanic eruptions
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  • The article warns that geo-engineering of this type, combined with the effects of global warming could produce reductions in regional rainfall that could rival those of past major droughts, leading to winners and losers among the human population and possible conflicts over water.
    • Benno Hansen
       
      ecowar
  • "optimism about a geo-engineered 'easy way out' should be tempered by examination of currently observed climate changes."
    • Benno Hansen
       
      hvorfor skulle geoengineering ikke have uforudsete bivirkninger når klimaforandringerne i sig selv er en "uforudset" (overraskende stor) bivirkning ved afbrænding af fossile brændstoffer?
Benno Hansen

IRIN Middle East | Middle East | Lebanon | LEBANON: Climate change and politics threate... - 0 views

  • rising temperatures, spiralling population growth and inefficient irrigation are severely straining resources and threatening renewed economic and social breakdown.
  • Lebanon has the highest annual rainfall in the region, averaging 827mm compared to 630mm in Israel, 252mm in Syria and just 154mm in Iraq
  • Yet experts estimate that demand for water in Lebanon will have increased by more than 80 percent by 2025 as Lebanon’s population is expected to grow from four to 7.6 million. In the same period, as a result of climate change, average summer temperatures in the country are predicted to increase by 1.2 degrees centigrade.
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  • Across areas of the northern Bekaa with better irrigation, many farmers have turned land over to growing water-thirsty but economically lucrative hashish plants – totalling some 16,000 acres of land
  • The valley is an economically underdeveloped area where more than 40 percent of residents are dependent on agriculture as their main source of living
Benno Hansen

Climate Change Could Be Impetus For Wars, Other Conflicts, Expert Says - 0 views

  • discussion has ensued among international-security experts who believe climate-change-related damage to global ecosystems and the resulting competition for natural resources may increasingly serve as triggers for wars and other conflicts in the future.
  • most possibly destabilizing populations and governments: degradation of freshwater resources, food insecurity, natural disasters and environmental migration.
  • the number of world regions vulnerable to drought was expected to rise
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  • “The associated socio-economic and political stress can undermine the functioning of communities, the effectiveness of institutions, and the stability of societal structures. These degraded conditions could contribute to civil strife, and, worse, armed conflict.”
  • “Most critical for human survival are water and food, which are sensitive to changing climatic conditions,”
  • “Large areas of Africa are suffering from scarcity of food and fresh water resources, making them more vulnerable to conflict.
  • “Although climate change bears a significant conflict potential, it can also transform the international system toward more cooperation if it is seen as a common threat that requires joint action,”
  • the seeming conflict between environment and the economy will be best overcome with the recognition that protecting the climate in the best interest of the economy.”
  • “History has shown how dependent our culture is on a narrow window of climatic conditions for average temperature and precipitation,”
Benno Hansen

British coal industry flack pushes geo-engineering "ploy" to give politicians... - 0 views

  • The geo-engineering option provides the needed viable reason to do nothing about AGW now….
  • “The ‘geo-engineering’ approaches considered so far appear to be afflicted with some combination of high costs, low leverage, and a high likelihood of serious side effects.“
  • they simply omit the costs of many of the potential negative aspects of producing a stratospheric cloud to block out sunlight or cloud brightening
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  • That the second author works for the American Enterprise Institute, a lobbying group that has been a leading global warming denier, is not surprising, except that now they are in favor of a solution to a problem they have claimed for years does not exist.
  • The American Meteorological Society (AMS) has just issued a policy statement on geoengineering, which urges cautious consideration, more research, and appropriate restrictions.
  • ignore the effects of ocean acidification from continued CO2 emissions
  • do not even mention several potential negative effects of SRM, including getting rid of blue skies, huge reductions in solar power from systems using direct solar radiation, or ruining terrestrial optical astronomy
  • cloud brightening would mainly cool the oceans and not affect land temperature much
  • cloud brightening over the South Atlantic would produce severe drought over the Amazon, destroying the tropical forest
  • Whose hand would be on the global thermostat? Who would trust military aircraft or a multi-national geoengineering company to have the interests of the people of the planet foremost?
  • threat to the water supply for agriculture and other human uses
  • benefits from SRM, including increased plant productivity and an enhanced CO2 sink from vegetation that grows more when subject to diffuse radiation
  • The real consensus, as expressed at the National Academy conference and in the AMS statement, is that mitigation needs to be our first and overwhelming response to global warming, and that whether geoengineering can even be considered as an emergency measure in the future should climate change become too dangerous is not now known.
Benno Hansen

Rising CO2 could cause catastrophic sea level rise finds Antarctic study - Telegraph - 0 views

  • during the last period of high CO2, 125,000 years ago, temperatures were up to 10.8F(6C) higher than present day levels. Such a hike in temperature could lead to a rise in sea levels of between 13 to 20ft (4 to 6 m) over hundreds of years as the ice sheets melt.
  • the study suggests that current high levels of CO2 could also cause a rise in temperature
  • massive droughts, extinction of species and sea level rise
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  • the proportion of fossil fuel emissions absorbed by the oceans since 2000 may have declined by as much as 10 per cent
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