El Nino cycle has a big effect on a major greenhouse gas

Nitrous oxide is commonly associated with laughing gas—the pleasantly benign vapor that puts patients at ease in the dentist's chair. But outside the dentist's office, the gas plays a serious role in the planet's warming ...

Migrating animals add new depth to how the ocean 'breathes'

The oxygen content of the ocean may be subject to frequent ups and downs in a very literal sense—that is, in the form of the numerous sea creatures that dine near the surface at night then submerge into the safety of deeper, ...

No 'silver bullet' for science standards

America's K-12 teachers are not fully prepared to meet a new set of science standards, a Michigan State University education scholar argues in Science.

Are we closing in on dark matter?

As the search for dark matter intensifies, the Kavli Institute for Cosmological Physics at the University of Chicago and the National Academy of Sciences organized a colloquium that brings together cosmologists, particle ...

Bread wheat's large and complex genome is revealed

Bread wheat (Triticum aestivum) is one of the "big three" globally important crops, accounting for 20% of the calories consumed by people. Fully 35% of the world's 7 billion people depend on this staple crop for survival. ...

New research can save tropical forests

Scientists from the University of Gothenburg, Sweden, have investigated how much carbon the natural forests of Sri Lanka contain. The results are important for work to reduce deforestation of tropical countries, and for international ...

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