Millions of farmers 'replumb' the world's largest delta

Collective groundwater pumping by millions of farmers in Bangladesh in the dry season each year has created vast natural reservoirs underground that, over a 30-year-period, rival the world's largest dams—these sustain irrigation ...

Haze returns to Malaysia

Haze caused by forest fires in neighbouring Indonesia blanketed parts of Malaysia including the capital, causing air pollution to hit unhealthy levels.

Are gas-formed gullies the norm on Mars?

In June 2000, Martian imaging scientists made a striking discovery — data from NASA’s Mars Global Surveyor spacecraft found gullies on the red planet. Gullies on Earth form when water runs down steep slopes and ...

Physicists working to cure 'dry eye' disease

The eye is an exquisitely sensitive system with many aspects that remain somewhat of a mystery—both in the laboratory and in the clinic. A U.S.-based team of mathematicians and optometrists is working to change this by ...

Spit, anyone?

Mark Nicas has given some of his best years to spittle. He builds models - the mathematical kind - of how someone else's slobber ends up on you. The size of the particles, whether they come out in a dry cough or a wet sneeze, ...

Changes in crops acres since freedom to farm

The 1996 U.S. Farm Bill eliminated many acreage restrictions, thereby allowing farmers to plant what they believe to be their most competitive crops. A study conducted by University of Illinois agricultural economists evaluated ...

Stressed plants say it with flowers

With the world's population expected to reach nine billion by 2050 and hotter, drier conditions due to climate change, researchers are racing against time to develop new crop varieties and to ensure there will be enough food ...

page 16 from 40