Earth
- 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.
- 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.
- Earth
In the aftermath
The charcoal left after a forest fire stimulates microbial activity that boosts carbon loss from organic material covering the ground.
- 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.
- Earth
Heat relief
A new data-rich climate model foresees a short-term reprieve from warming for parts of western Europe and North America.
- Humans
Bear deadline
Court calls for the already overdue decision on listing polar bears as a threatened species.
- 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.
- 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.
- Humans
The Return of EPA’s Libraries
After mothballing five libraries as a purported cost-cutting gesture, the agency is now responding to congressional prodding and unboxing its books.
- Climate
Science News for Kids: Polar Ice Feels the Heat
From glaciers to sea ice, the big melt is on.
- Earth
Climate fix could deplete polar ozone
Scientists seeking to cool Earth’s climate by injecting sulfuric acid droplets high in the atmosphere might trim rising temperatures but could also destroy much of the ozone in polar regions, a new study suggests.
- Ecosystems
Eight-legged bags of poison
Birds eating arachnids get high dose of toxic metal as mercury climbs up the food chain.
