As states suddenly expand the categories of people eligible for the first scarce shipments of vaccine, who will be watching to make sure those hit hardest by the pandemic aren't left behind?

The change means that doctors will no longer need a special federal waiver in order to prescribe buprenorphine, a medication to treat opioid use disorder.

Journalist Beth Gardiner and activist Yvette Arellano explain the long-term health effects of air pollution. Yvette lives in a Houston neighborhood near the largest petrochemical complex in the U.S.

Each day, we breathe about 22,000 times--and all that time we smell. Scent historian Caro Verbeek recreates scents of the past. She says, just like music and art, smell is a part of our heritage.

Dinosaurs ruled Earth for 180 million years, but to dominate they had to outcompete a slew of other animals. Paleontologist Emma Schachner thinks their lungs could have been the competitive advantage

As Americans stayed home during the pandemic, cars and planes produced less heat-trapping emissions. But the effect is only temporary.

At least a dozen people died and more than 80 people fell ill after untreated water from the Flint River caused lead to leach from old pipes, poisoning the water system city residents relied on.

There are reports that ex-Michigan Gov. Snyder and others will be charged in relation to the crisis that began seven years ago. There is also word that a possible civil settlement in the works.

The Green New Deal Network is launching with over $20 million to promote their agenda, as President-elect Joe Biden prepares to take office and Democrats set to control both chambers of Congress.

Starting Jan. 26, airlines will only allow people to board if they provide documentation that they tested negative in the preceding three days or have recovered from the disease.