Both nitrogen and phosphorous are essential to life. Lynchpins both to global food production, circulating through synthesis or export and then through croplands and food into

The UN Forum on Forest s fourth meet ended half a day ahead of schedule, raising doubts on the convention s ability to frame an agenda. Clifford Polycarp saw it all in Geneva

The

Proposals for greenhouse-gas reductions have been met with widespread skepticism in the developing world, in part because such countries find their conventional air-pollution problems more pressing. The goal of this article is to examine whether reductions in carbon emissions that are ancillary to conventional pollutant reductions from a policy to phase out small boilers in downtown Taiyuan, China are large enough to make such policies attractive carbon reducing investments to developed countries.

only mother's son: Japanese and Korean scientists have created a mouse without using a sperm. The feat is akin to the birth of Dolly, the world's first cloned mammal. Bees, ants, aphids, some fish

A giant panda in Berlin's zoo might finally conceive if Chinese experts' efforts bear fruit. Six earlier attempts to impregnate 19-year-old Yan Yan with sperm from her Berlin zoo companion, Bao Bao,