Environment

Tornadoes injured dozens of people as they moved through southeastern Louisiana on Tuesday. In New Orleans East, the National Guard was helping clear streets of debris and downed electrical wires.

Researchers have developed a new wheat-like species called Salish Blue that grows back year after year, which not only cuts down on work for farmers, but helps prevent erosion and agricultural waste.

The National Weather Service says multiple tornadoes touched down in southern Louisiana on Tuesday, and severe weather moving east threatened other Southern states.

The U.S. Army Corps of Engineers says it will allow the pipeline to cross under the Missouri River, cutting short an environmental impact assessment and removing the final barrier to construction.

While Barack Obama's energy policy focused on renewable power and climate change, President Trump is focused on extracting fossil fuels. Among big changes, some predict higher prices at the pump.

Banff National Park is hailing the beasts' return as a "historic and cultural triumph." Local indigenous communities also have strong spiritual ties to the bison, and welcomed their reintroduction.

Over the past 60 years, the number of new diseases cropping up in a decade has almost quadrupled. "We're in a hyperinfectious world," says one scientist.

Fleece jackets and pullovers have transformed our experience of the outdoors. But the little, tiny synthetic fibers that fleece is made of could also be ending up in our diets.