From plastics to flame retardants, the ubiquitous chemicals of our daily lives have raised public health concerns like never before. Inside the Beltway, however, data-crunching scientists are often no match for industry lobbyists and corporate lawyers. The exception, no doubt, is Linda Birnbaum, the toxicologist who leads, two little-known scientific agencies, the National Institute of Environmental Health Services (NIEHS) and the National Toxicology Program (NTP).

In the high-altitude desert of the Indian trans-Himalayas, one man is buying time for villagers suffering from global warming by creating artificial glaciers.

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There is a growing possibility that the U.S. will pass no climate change legislation in this session of Congress: the uphill climb is at least as steep, and probably steeper, as it is for health care legislation. President Barack Obama cannot presume to hold his own party in line on climate change.

The best price for getting anti-mosquito bed nets to the poor proves to be "free".

Scientists must ask corporations for permission before publishing independent research on genetically modified crops. That restriction must end. (Editorial)

Yucca Mountain was supposed to be the answer to the U.S.'s nuclear waste problem, but after 22 years and $9 billion, that vision is dead. Now, some say that doing nothing in the near term may be the smartest solution.

The illegal slaughter of African elephants for ivory is now worse than it was at its peak in the 1980s. New forensic tools based on DNA analysis can help stop the cartels behind this bloody trade.

There is a myth in America that markets, not plans, are the key to success. Markets will supposedly decide our climate future on their own once we institute cap-and-trade legislation to put a market price on carbon emissions. But this is silly: both markets and planning are essential in any successful large-scale undertaking, whether public or private.

Radioactive clouds hung over villagers as China detonated nuclear bombs in the air for four decades.

Phosphorus has been used extensively for over 100 years as a fertiliser in modern industrial agriculture. This underappreciated resource is still decades from running out. This paper published in Scientific American advises us to act now to conserve it, or the future agriculture could collapse.