All Global Warming
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Lots of climate-change studies, still few certainties
The Arctic can be frustrating for scientists trying to predict global warming.
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Potent greenhouse-gas methane has been rising
Methane levels in the atmosphere rose in 2007 after 10 years. Scientists are trying to find out why.
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Sparks fly over ethics of air travel
Is this trip necessary? A jet lands in Montreal. Proponents of air travel tout its importance to the global economy. Detractors say per-passenger emissions carry too high a cost.
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Swedes weigh global warming versus a better tan
Eco-minded Scandinavians crave winter vacations. Yet the long flights add to greenhouse gases. Should they hit the beach or save the planet?
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Media survey: Bush's new global-warming plan gets cool reception
Politicians at home and abroad question the president's strategy, while new climate studies pour in.
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Why national parks, coal-fired power plants may be neighbors
Air-quality experts worry that proposed changes to clean-air regulations may allow developers to build the plants near pristine areas.
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A controversial fighter in the climate-change debate
NASA's James Hansen frequently clashes with global warming 'deniers,' as well as the Bush administration.
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'Citizen scientists' watch for signs of climate change
People with no formal training are helping scientists track and record birds, fish, stars, and plants in their neighborhoods online.
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Gore launches climate change ad campaign
Too few people are changing their lifestyles, environmentalists say, and too few politicians are acting.
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Climate change debate: push emissions goals or technology?
Should the world put less focus on emissions caps and more on spurring clean technologies?
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Dust plays huge role in climate change
Tiny particles heat up the atmosphere faster than scientist once believed. The good news is this dust can be cleaned up fairly quickly.
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Bush's 'caution' on CO2 seen as 'foot-dragging' by critics
Supreme Court has ruled that EPA can regulate greenhouse-gas emissions from cars, but administration says deliberation needed.
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Earth Hour: U.S. cities to dim lamps, illuminate climate-change
Twenty-five cities around the world will participate in the World Wildlife Fund campaign.
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How much will it cost to fix the climate? The numbers vary.
Even when experts look at the same data, they can come to vastly different conclusions.
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Bangkok talks to set timetable on global-warming pact
By December 2009, binding greenhouse-gas emissions policies will be set for developing countries.
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U.N. Security Council must act preemptively – on climate change
This global threat requires a war-room mentality.
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Water shortages affect food, transit, security
A thousand tons of water produces just one ton of grain.
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Tropical glaciers slowly vanish
Rivers fed by melting glaciers across Latin America may soon dry up, forcing changes on the people who depend upon them.
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China's pollution nightmare is now everyone's pollution nightmare
The environmental disaster springs largely from its emulation of the American way of life – so let's set a better example.
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At E.U. summit, climate change billed as major security risk
EU foreign affairs chief Javier Solana warns in a new report that detrimental climatic changes could drive millions of migrants to Europe from developing countries.
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