Earth
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Climate
Air Pollution Can Be So Cool — ing
Fossil-fuel pollution has been offsetting global warming to the tune of about 30 percent per year. Cleaning up that pollution, a must, threatens to accelerate warming unless humanity changes its fuel-use strategy.
By Janet Raloff -
Life
The Arctic isn’t alone
Insects and other animals that regulate their body temperature externally may be especially vulnerable as the world warms.
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Health & Medicine
Rice Woes, Pt. 1
A shortfall in rice production has been developing well under the radar screen of agricultural economists and growers. The bad news: It promises to get much worse, and fairly soon.
By Janet Raloff -
Earth
Challenging ethanol’s dirty reputation
An inexpensive way to make ethanol from wood chips reduces net greenhouse gas emissions as much as more costly methods.
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Climate
Olympic Clean Up
Rather than wowing its visitors this summer with world-class air pollution, China wants to impress them with its clean, green Olympics.
By Janet Raloff -
Earth
In the aftermath
The charcoal left after a forest fire stimulates microbial activity that boosts carbon loss from organic material covering the ground.
By Sid Perkins -
Earth
It’s the meat not the miles
Eating less red meat and dairy may do more to reduce food-associated greenhouse gas emissions than shopping locally.
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Earth
Heat relief
A new data-rich climate model foresees a short-term reprieve from warming for parts of western Europe and North America.
By Sid Perkins -
Humans
Bear deadline
Court calls for the already overdue decision on listing polar bears as a threatened species.
By Susan Milius -
Earth
Molten salts give biofuels a boost
Making biofuels from the chemical energy locked in plant cell walls has proven difficult, but molten salts may help.
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Ecosystems
Building Homes Where the Buffalo Roamed
A new study finds that being environmentally conscious is no guarantee you’ll put your home where you mouth is.
By Janet Raloff