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Questioning GMOs

Are genetically engineered foods safe? Truth is, we probably don't know. "The scientific debate is not resolved, even though many people are claiming it is," says Sheldon Krimsky, the Lenore Stern Professor ...

Nov 07, 2014
3.1 / 5 (17) 7

Rare optimism ahead of climate talks in Lima

Energized by new targets set by China and the United States, the world's top climate polluters, U.N. global warming talks resume Monday with unusual optimism despite evidence that human-generated climate ...

Nov 29, 2014
2.9 / 5 (11) 9

Researchers track ammonium source in open ocean

To understand the extent to which human activities are polluting Earth's atmosphere and oceans, it's important to distinguish human-made pollutants from compounds that occur naturally. A recent study co-authored ...

Oct 29, 2014
5 / 5 (6) 1