Agriculture

Nutritious and environmentally friendly, seaweed could be the crop of the future in North America, but hopeful growers and marketers of "sea vegetables" face challenges.

Deciphering story of old waterways might aid understanding of climate change.

The ancient South American Nasca civilization may have caused its own demise by clear-cutting huge swaths of forest, a new study found.

What hunger does and how people around the world suffer its consequences.

Air pollution in China has cut the amount of light rainfall by 23 percent over the past 50 years.

Hybrids that yield unusually large seeds are nutritional powerhouses that could help counter global warming's effects on crops.

Spring and early summer is the nation's season of risk for conceiving a child with birth defects, a new study finds.

Tens of thousands of small farms were created since 2002, according to new data from the Census of Agriculture.

Any questions about whether the Obama administration views global warming seriously were answered today.

Study finds human hair can work as fertilizer for slow-growing plants.