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Homeland Security Secretary Jeh Johnson says that in the coming days his department will unveil a new way to let the public know about terrorist threats. It's an acknowledgement, he says, of the evolving threat environment.

A new report by the advocacy group Environment Florida argues that water in Florida’s schools and day cares may contain dangerous levels of lead, but...

The Trump administration faces protests for its plan to aggressively rein in the EPA, an agency created by President Richard Nixon. But environmental protection was not always so politically divisive.

Young people in Montana won a lawsuit against the state for promoting fossil fuels, saying it violated the right to "a clean and healthful environment." This year, lawmakers passed laws trying to change that.

Another bipartisan effort in Congress seeks to prohibit oil spill that could devastate Florida’s beaches, marine environments, and cause another dip in tourism revenue

A new study of the dental plaques of three Neanderthals reveals surprising facts about their lives, including what they ate, the diseases that ailed them and how they self-medicated (and smooched).

As they drill more wells to water crops, drought-stricken farmers in southwest Spain confront environmentalists in Doñana National Park, a migratory bird refuge that's lost 80 percent of its aquifer.

Paul Tough's new book surveys the best new evidence on how to overcome the effects of poverty.

A team of scientists argue that new vaccines and treatments wouldn't be critical if humans could figure out how to stop viruses from spilling over from animals in the first place.

CORRECTIONS: WGCU previously reported the orange-brown color comes from excess nutrients, but it's actually caused by plant material. We also reported…