The once nearly extinct Kirtland's warbler is creating a stir in the conservation world. People in Michigan and Wisconsin hope the success story will keep the Endangered Species Act alive.
Deep in a forest of central Massachusetts stands an average red oak tree. Nothing is special about it, except for the fact that it tweets, offering insight into climate change.
Parts of the Mississippi have been above flood stage for months. All of the Great Lakes are at or near record-high levels. It's halting barge traffic, damaging infrastructure and eroding shorelines.
Officials in the New Jersey city began to hand out water bottles this week after the Environmental Protection Agency said filtered drinking water samples exceeded government thresholds on lead levels.
Prime Minister Imran Khan's ban on plastic bags in Pakistan goes into effect on Aug. 14. Environmentalists say it's a good idea — but argue that the plan is flawed.
Some of the oldest companies in America are in the climate change debate. Utilities are supposed to deliver electricity cheaply and reliably. Now, regulators are trying to make them go green.
There are many elements to consider: climate, animal welfare, greenhouse gas emissions, land use. And with so many factors at play, sometimes the answer gets complicated.
The largest die-off reported comes from the Koyukuk River, a tributary of the Yukon. Researchers suspect record warm waters as the cause but not all salmon are affected.