Duke University

Ferns borrowed genes to flourish in low light

During the age of the dinosaurs, the arrival of flowering plants as competitors could have spelled doom for the ancient fern lineage. Instead, ferns diversified and flourished under the new canopy—using ...

Apr 14, 2014
4.6 / 5 (5) 0

Lessons offered by emerging carbon trading markets

Although markets for trading carbon emission credits to reduce greenhouse gas emissions have stalled in United States federal policy-making, carbon markets are emerging at the state level within the U.S. and around the world, ...

Mar 21, 2014
3 / 5 (8) 1

Fine-tuning Stephen Hawking's theory of mass

(Phys.org) —If you want to know your body's mass, you hop on a scale and watch the needle swing. But if you want to know the mass of a region out in space, there's no cosmic equivalent—the best you can ...

Mar 18, 2014
4.4 / 5 (36) 9