Can Geoengineering Help Slow Global Warming?

If we geoengineered the earth into a mess with our uncontrolled appetite for fossil fuels, maybe we have to geoengineer our way out of it

Extinction 'Gene': Some Species Are More at Risk

A new study finds that the risk for extinction isn't random — it tends to run in evolutionary families, wiping out groups of species at a time

Cash for Clunkers: How Big an Environmental Boost?

The government's cash-for-clunkers program is a big winner with American consumers and the auto industry, but how good is it for the environment?

Expedition Sets Sail to the Great Plastic Vortex

What's twice the size of Texas, floating in the Pacific and consists of nothing but plastic garbage? The great Plastic Vortex of the Pacific

Clean Energy: U.S. Lags in Research and Development

To really replace fossil fuels with clean, renewable energy, the U.S. needs to get serious about science and money — and we're nowhere close to where we have to be

A Delicate Undertaking

You can save virgin forests by using recycled toilet paper. But how hard is it to make the switch?

Still Digging Up Exxon Valdez Oil, 20 Years Later

Two decades after the Exxon Valdez spill, Prince William Sound appears to be thriving again. But scientists are still finding toxic oil hiding underground

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A Brief History of the Exxon Valdez Disaster

Greens Celebrate Cap-and-Trade Victory — Cautiously

Environmentalists got a long-awaited victory on Thursday when a carbon cap-and-trade bill took a step toward becoming law, but some worry it won't have a meaningful impact on U.S. emissions

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Another Blow to Ethanol: Biolectricity Is Greener

A new study delivers another blow to ethanol, suggesting that all things being equal, using biomass to create electricity rather than ethanol is more efficient and greener

Obama Agrees with Bush on Polar Bears

The Obama Administration's Interior Secretary upholds Bush's last-minute changes to the Endangered Species Act

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Getting People to Coexist with Cats

Panthera's innovative new conservation program in Brazil will offer free health care and education to local communities in exchange for big-cat protection

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Remembering the Lessons of the Exxon Valdez

Two decades after the Exxon Valdez accident, spilled oil can still be found on Alaska's coast and the ecosystem has yet to fully recover

A Brief History of the Exxon Valdez Disaster