Earth
- Climate
Hydrogen economy sustainable in 15 years
Hydrogen fuel cells can eventually replace the combustion engine, but meanwhile a wider range of technologies will be needed to reduce carbon emissions.
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- Oceans
Death by magma
Widespread extinctions in the world’s oceans millions of years ago may have been triggered by massive underwater volcanic eruptions that created much of the Caribbean seafloor.
- Chemistry
The Goop in Our Air
Emerging data indicate that tiny and toxic particles polluting urban air chemically morph from hour by hour, depending on what other pollutants these particles encounter during journeys that can run hundreds of miles.
- Climate
Another climate ailment
Global warming may turn out to be more than just a pain in the neck: Rising average temperatures could trigger an increased prevalence of kidney stones.
- Chemistry
CO2: Only One Flavor
Federal climate policymakers should have a grounding in basic chemistry.
- Health & Medicine
One Downside to Sushi
Uncooked fish can host detectable concentrations of potentially toxic chemicals — pollutants that cooking can make disappear,
- Humans
Toxic yes: Toxins? No
Yet another news story baits us with the promise of reading about noxious toxins – and doesn't deliver.
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- Earth
Howdy, neighbor!
About 800 million years ago, East Antarctica, now one of the coldest regions on Earth, abutted what is now Death Valley, Calif., one of the hottest.
- Ecosystems
Aspiring to Save the Planet
The failure of the G-8 Summit to put some teeth in greenhouse-gas limits suggests it may be time for a global climate czar.
