Archive for the ‘Climate Change’ Category

Rivers run towards ‘crisis point’

Thursday, March 22nd, 2007

Some of the world’s major rivers are reaching crisis point because of dams, shipping, pollution and climate change, according to the environment group WWF.

Its report, World’s Top 10 Rivers at Risk, says the river “crisis” rivals climate change in importance.

Five of its “top 10” are in Asia, such as the Yangtse, Mekong, and Ganges, though Europe’s Danube and North America’s Rio Grande are also included.

WWF says governments should see water as an issue of national security.

Its report is issued in advance of World Water Day (22 March).

“The world is facing a massive freshwater crisis, which has the potential to be every bit as devastating as climate change,” said Dr David Tickner, head of the freshwater programme at WWF-UK.

“We need business leaders and governments to recognise that climate change is not the only urgent environmental issue that needs to be dealt with, and that they need to take notice of this freshwater emergency and act now, not later.”

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Winter warmth breaks all records

Saturday, March 17th, 2007

Winter in the Northern Hemisphere this year has been the warmest since records began more than 125 years ago, a US government agency says.

The combined land and ocean surface temperature from December to February was 0.72C (1.3F) above average.

The National Oceanic and Atmospheric Administration said El Nino, a seasonal warming of parts of the Pacific Ocean, had also contributed to the warmth.

But it did not see the high temperature as evidence of man-made global warming.

The Noaa said that temperatures were continuing to rise by a fifth of a degree every decade. The 10 warmest years on record have occurred since 1995.

Weather experts predict that 2007 could be the hottest year on record.

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E.U. Raises Bar in Fight Against Global Warming

Saturday, March 17th, 2007

PARIS, March 9 — European Union leaders agreed Friday to take the 27-country bloc beyond the targets of the 1997 Kyoto Protocol on global warming, agreeing to legally binding reductions in greenhouse gas emissions and increasing the use of renewable energy.

During a sometimes contentious two-day meeting in Brussels, the leaders agreed to cut the gas emissions by at least 20 percent from 1990 levels in the next 13 years. They set binding targets for renewable energy sources, such as wind, solar and hydro power, to supply 20 percent of the union’s power needs and for biofuels to be used in 10 percent of the bloc’s road vehicles by 2020.

European governments have been a major promoter of the Kyoto pact, which attempts to counter trends that are warming the Earth’s climate. The United States and some developing countries have withheld support from the pact, saying it is likely to harm economic growth and is based on inconclusive science.

The agreement in Brussels was reached after months of negotiations within the bloc. Leaders said they hoped the aggressive measures would help persuade some of the world’s biggest polluters, including the United States, China and India, to follow their lead.

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Three on ice…

Thursday, March 15th, 2007

– Here are three articles which all came out within a day of each other – all on glaciers, sea ice, warming oceans and melting. Melting going on everywhere.

Sea ice - say “bye, bye…”

Antarctic Glaciers’ Sloughing Of Ice Has Scientists at a Loss

Some of the largest glaciers in Antarctica and Greenland are moving in unusual ways and are losing increased amounts of ice to the sea, researchers said yesterday.

Although the changes in Greenland appear to be related to global warming, it remains unclear what is causing the glaciers of frigid Antarctica and their “ice streams” to lose ice to the ocean in recent years, the researchers said.

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Arctic Sea Ice Decline May Trigger Climate Change Cascade

Science Daily Arctic sea ice that has been dwindling for several decades may have reached a tipping point that could trigger a cascade of climate change reaching into Earth’s temperate regions, says a new University of Colorado at Boulder study.

Mark Serreze, a senior research scientist at CU-Boulder’s National Snow and Ice Data Center who led the study synthesizing results from recent research, said the Arctic sea-ice extent trend has been negative in every month since 1979, when concerted satellite record keeping efforts began. The team attributed the loss of ice, about 38,000 square miles annually as measured each September, to rising concentrations of greenhouse gases and strong natural variability in Arctic sea ice.

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Warming Oceans Threaten Antarctic Glaciers

Science Daily Scientists have identified four Antarctic glaciers that pose a threat to future sea levels using satellite observations, according to a study published in the journal Science.

Experts from the University of Edinburgh and University College London determined the effect that Antarctica and Greenland were having on global sea level in a comprehensive evaluation of the Earth’s ice sheets. They found that together these two ice-sheets were responsible for a sea level rise of 0.35 millimetres per year over the past decade — representing about 12 per cent of the current global trend.

However, despite recent attention that has focused on the importance of the Greenland ice sheet, the research shows that its glaciers are changing too erratically to establish a trend with confidence. In contrast, four major glaciers in East and West Antarctica were shown to be retreating in unison, raising concerns that global sea level could rapidly rise if the oceans continue to warm.

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UN chief warns on climate change

Sunday, March 4th, 2007

This is a theme I’ve seen before and that I subscribe to. I’d take it a step further than the Secretary General, however. He fears war, chaos and instability as the result of Global Climate Change. I fear that many of the problems enumerated under the Perfect Storm Hypothesis could, if they manifest, lead to war and instability. Things are too deeply interconnected and too deeply interdependent for a major change to not trigger other changes.

– To see what he’s talking about, however, consider that in our unbridled drive for short term corporate profits, we will continue to emit greenhouse gases which will alter the climate. As the climate becomes warmer and more unstable, the oceans will rise and in the poorer low-lying third world countries millions and millions of environmental refugees will be displaced. They in turn will overwhelm the abilities of the receiving areas and nations to deal with them causing food, water and general resource problems for their people in turn. As the weather becomes warmer, the glaciers will continue to melt and disappear and the winter mountain snow packs will lessen year by year and these, in turn, will lead to severe water shortages. Water shortages will lead to food shortages because irrigation will be curtailed and as food becomes more expensive, the poorer nations and peoples will be priced out of the market and starvation will result. Starvation will result in political instability and chaos and war will arise because people will not starve quietly. And these wars, in turn, will lessen the ability of existing infrastructures to deliver critical resources to hard hit areas and the vicious circles will tighten.

– Humanity is near the edge now of the planet’s ability to supply sufficient fresh water and food for humanity. As global climate change begins to interfere with our delicate and peace dependent distribution systems, they will begin to come down like a house of cards and as they fall, secondary effects will ripple into tertiary effects and before it is done much of the third-world will be in chaos and the first-world’s borders will be bristling with barbed wire. The systems we have in place now have a certain amount of ability to deal with stress and chaos – such as when Hurricane Katrina hit New Orleans. But this ‘flexibility’ has limits and beyond these limits, things will come apart faster than we can paste them together again and a cascade will result. And, as we’ve edged closer to the planet’s ability to provide us water and to feed us, we’ve also been trimming away the saftey margins of our systems. The closer to the edge of chaos we move, the easier the push it takes to send us over.

– As the third-world goes ‘off-line’, globalization will lose its relevance and many of the first-world nations will have to regress back to producing their own consumer products and food and that will not be an easy transition to make quickly as so many of the required infrastructures have been dismantled by our dependence on the fruits of globalization and easy international transportation and distribution.

– Changes of this magnitude will not leave the economies of the first-world nations unscathed. Severe recessions will result and chaos will reverberate through the markets. This will lead to economic disasters which, in turn, will lead to foreclosures, unemployment, homelessness and hunger much as we experienced in the Great Depression – and perhaps much worse.

– But he’s pointing this out to a world that’s never seen it happen quite like this before and thus disbelieves that it will. I’m afraid he may be shouting into the wind.

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UN Secretary General Ban Ki-moon has warned that climate change poses as much of a danger to the world as war.

In his first address on the issue, Mr Ban said changes in the environment were likely to become a major driver of future war and conflicts.

He urged the US – the world’s biggest producer of greenhouse gases – to take the lead in fighting global warming.

Mr Ban said he would focus on the issue in talks with leaders of the G8 group of industrialised nations in June.

The UN is also due to hold a conference on climate change in Bali in December.

UN environment officials have been urging Mr Ban to take up the issue, says the BBC’s Laura Trevelyan in New York, arguing that global leadership is needed and that he could make an impact.

Speaking to schoolchildren at a UN conference in New York, Mr Ban said his generation had been “somewhat careless” with the planet but that he was hopeful that that was changing.

“The majority of the United Nations’ work still focuses on preventing and ending conflict,” he said.

“But the danger posed by war to all of humanity and to our planet is at least matched by the climate crisis and global warming.”

Last month, a panel of scientists organised by the UN published a report showing that human activity was “very likely” to be causing climate change, and predicted rises in temperatures and sea levels.

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U.S. Predicting Steady Increase for Emissions

Sunday, March 4th, 2007

The Bush administration estimates that emissions by the United States of gases that contribute to global warming will grow nearly as fast through the next decade as they did the previous decade, according to a long-delayed ( & ) report being completed for the United Nations.

The document, the United States Climate Action Report, emphasizes that the projections show progress toward a goal Mr. Bush laid out in a 2002 speech: that emissions of carbon dioxide and other greenhouse gases grow at a slower rate than the economy. Since that speech, he has repeated his commitment to lessening “greenhouse gas intensity” without imposing formal limits on the gases.

Kristen A. Hellmer, a spokeswoman for the White House on environmental matters, said on Friday, “The Climate Action Report will show that the president’s portfolio of actions addressing climate change and his unparalleled financial commitments are working.”

But when shown the report, an assortment of experts on climate trends and policy described the projected emissions as unacceptable given the rising evidence of risks from unabated global warming.

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– This article is from the NY Times and they insist that folks have an ID and a PW in order to read their stuff. You can get these for free just by signing up. However, recently, a friend of mine suggested the website bugmenot.com :arrow: as an alternative to having to do these annoying sign ups. Check it out. Thx Bruce S. for the tip.

5 governors agree to work on climate

Tuesday, February 27th, 2007

WASHINGTON (AP) — Governors from five Western states agreed Monday to work together to reduce greenhouse gases, saying their region has suffered some of the worst of global warming with recent droughts and bad fire seasons.

The governors of Arizona, California, New Mexico, Oregon and Washington state agreed that they would develop a regional target to lower greenhouse gases and create a program aimed at helping businesses reach the still-undecided goals.

“In the absence of meaningful federal action, it is up to the states to take action to address climate change and reduce greenhouse gas emissions in this country,” said Arizona Gov. Janet Napolitano, a Democrat. “Western states are being particularly hard-hit by the effects of climate change.”

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Mountain Glaciers Melting Faster Than Ever, Expert Says

Friday, February 23rd, 2007

Mountain glaciers are melting faster than ever, a leading climate expert announced yesterday, and eerie effects of the thaw are being seen from the summits of South America to the highest peak in Africa.

In Peru alone, ice fields are disappearing so quickly that giant lakes have formed where meadows recently stood.

And retreating glaciers are exposing ancient plants that haven’t been seen in 5,000 years.

Lonnie Thompson, an expert in ancient climates at Ohio State University, announced his findings yesterday at a meeting of the American Association for the Advancement of Science in San Francisco, California.

Thompson’s latest research has focused on measuring glaciers in the Andes mountain range, which spans seven South American countries, and on Mount Kilimanjaro in eastern Africa.

“One of the things that’s very clear … is that the climate changes in those areas are unusual—unprecedented—in the thousands of years of history that we can look at in these places,” Thompson said.

Kilimanjaro’s glaciers are melting so quickly, he said, that the mountain lost nearly a quarter of its ice from 2000 to 2006.

Meanwhile, some glaciers in the Andes are melting ten times faster than they did just 20 years ago.

The massive melts are among the most provocative evidence yet that the world is getting too warm too fast to be the result of natural forces alone, Thompson said.

“If you look at what’s happened to these glaciers, they’re not just retreating, they’re accelerating [their retreat],” he said. “And it raises the question of whether this might be a fingerprint of [human-caused global] warming.”

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– One essential point that this article failed to mention is how very many people depend on glaciers and high mountain snow packs for their summer water. Most people in northern India south of the Himalayas, most people on the western side of the Andes up and down South America and many people in the dry United States southwest. As the glaciers vanish and the winter snow packs lessen and melt off sooner, water is going to be in ever shorter supply. Eventually, it will go way past critical. Social breakdown and chaos will result as millions of water refugees move to areas with more water. Just part of the coming Perfect Storm.

Acid Oceans Threatening Marine Food Chain, Experts Warn

Friday, February 23rd, 2007

The world’s oceans are turning acidic due to the buildup of carbon dioxide (CO2) in the atmosphere, and scientists say the effects on marine life will be catastrophic.

In the next 50 to 100 years corrosive seawater will dissolve the shells of tiny marine snails and reduce coral reefs to rubble, the researchers say (coral photos, facts, more).

Four leading marine experts delivered this grim prognosis yesterday at the annual meeting of the American Association for the Advancement of Science in San Francisco, California.

The scientists stressed that increased ocean acidity is one of the gravest dangers posed by the buildup of atmospheric CO2.

“Ocean chemistry is changing to a state that has not occurred for hundreds of thousands of years,” said Richard Feely of Seattle’s Pacific Marine Environmental Laboratory.

“Shell-building by marine organisms will slow down or stop. Reef-building will decrease or reverse.”

Already, Feely said, ocean acidity has increased about 30 percent since industrialization began spurring harmful carbon emissions centuries ago. Unless emissions are reduced from current levels, an increase of 150 percent is predicted by 2100.

Such an increase would make the oceans more acidic than they’ve been at any time in the last 20 million years, he added.

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Warming Threatens Double-Trouble in Peru

Tuesday, February 13th, 2007

PASTORURI GLACIER, Peru (AP) — Peru’s “White Mountain Range” may soon have to change its name.

The ice atop Cordillera Blanca, the largest glacier chain in the tropics, is melting fast because of rising temperatures, and peaks are turning brown. The trend is highlighting fears of global warming and, scientists say, is endangering future water supplies to the arid coast where most Peruvians live.

Glaciologists consider the health of the world’s glaciers an indicator of global warming and they warn that what is happening in the Andes signals trouble ahead.

“To me it’s the rate of ice loss that’s a real concern,” because when melting accelerates, the ice cannot replenish itself, said Lonnie Thompson, a leading glacier expert at Ohio State University.

Thompson, a geologist monitoring glacier retreat on the Andes, Himalayas and Kilimanjaro, said tropical glaciers are melting all over the world because of rising temperatures “and where we have the data to prove it, the rate of ice loss is actually accelerating.”

Quelccaya in southern Peru, the world’s largest tropical ice cap, is retreating at about 200 feet a year, up from 20 feet a year in the 1960s, Thompson said.

Melting is also visible in the other Andean countries – Colombia, Venezuela, Ecuador and Bolivia.

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