Environment

The EPA moved ahead with far-reaching polices to reduce carbon pollution from power plants. And the president struck a landmark deal with China to curb its carbon output as well.

One of the primary tools that U.S. transportation departments count on to keep roads safe is road salt. But that has meant rising levels of chloride in many northern streams.

The average age of a farmer in the U.S. is over 58 and climbing. But in places like Maine, a growing number of under-35 farmers see an opportunity for better lives growing food for their communities.

A handful of ecologists knew for years that West Africa was at risk for an Ebola outbreak. Now they're figuring out where else in the world the virus could be hiding. Many signs point to Asia.

This year was the third-driest on record for the state, but recent storms, plus new groundwater regulations, have given the hardest-hit agricultural towns a glimmer of hope.

In the mid-1960s, a biologist discovered the beauty of humpback whale songs. But his recordings weren't just academic — they were woven into popular music, and they kicked off an entire movement.

An expedition to the Pacific's Mariana Trench has found evidence that life exists miles below the surface. But it's not life as we know it.

Americans buy 25 million Christmas trees every year. They're slow-growing crops, but the trees can be a smart investment for small farmers like the Carroll family in Louisa, Va.

The emerald ash borer is spreading across the U.S. and destroying ash trees. The pests usually only bothered ash trees, but an Ohio scientist has made a distressing discovery.