With significant increases in the price of fertilizer and grain, site-specific management -- especially in variable rate nitrogen application -- can have a significant impact on yield and profitability, as reported in the latest issue of Agronomy Journal.

Although most people imagine wolves chasing deer and other hoofed animals, new research suggests that, when they can, wolves actually prefer fishing to hunting. The study shows that when salmon is available, wolves will reduce deer hunting activity and instead focus on seafood.

Up to 20 million people, thousands of whom are already displaced from their homes following the devastating Chinese earthquake, are at increased risk from flooding and major power shortages in the massive Sichuan Basin over the next few decades and possibly centuries. A geographer from Durham university makes the observations on returning from carrying out investigative fieldwork in the China earthquake zone.

Human activities bear a large part of the responsibility for coral reef degradation. Several threats hang over this complex ecosystem with its extraordinary biodiversity, whether in the form of anthropogenic effluents emitted at certain times or global warming which causes coral bleaching.

Computer scientists are generating new "petascale" computer models depicting detailed climate dynamics, which will build the foundation for the next generation of complex climate models. The project offers a golden opportunity for climate simulation and prediction scientists to dramatically advance Earth system science and help to improve quality of life on the planet.

A team of scientists is studying the complex ocean upwelling process by mimicking nature -- pumping cold, nutrient-rich water from deep within the Pacific Ocean and releasing it into surface waters near Hawaii that lack the nitrogen and phosphorous necessary to support high biological production.

The theory that global warming may be contributing to stronger hurricanes in the Atlantic over the past 30 years is bolstered by a new study.

Despite projections by some scientists of global seas rising by 20 feet or more by the end of this century as a result of warming, a new study concludes that global sea rise of much more than 6 feet is a near physical impossibility.

With more than 3 million acres of wheat in north Texas, 50 percent or more of which is grazed by 1 to 2 million head of cattle, it is important to look at tillage practices and their effect on forage production. Research agronomists have been studying nitrogen response and forage production in relation to tillage practices.

The most ferocious tropical cyclones are spinning faster than ever, thanks to ocean warming