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Paul Nicklen has spent decades documenting the Arctic and the Antarctic. He often finds himself in frigid waters, just a camera's length away from deadly predators. Originally broadcast June 6, 2017.

Polar bears live on sea ice but that habitat is slowly disintegrating. Juliet Eilperin of The Washington Post, and Dr. Jeffrey Bonner, President and CEO of the St. Louis Zoo, talk to David Greene about a push to preserve polar bears. The idea is to keep a number of them in captivity to preserve the gene pool .

Senate Bill 7 is at the forefront of Texas Republicans’ crusade to further restrict voting in the state following last year’s election.

Kimberly Mata-Rubio's daughter Lexi was killed in the Robb Elementary shooting. Now, as she runs for mayor, some residents see her as a painful reminder of a tragedy they're trying to move on from.

El Salvador's Nayib Bukele has won plaudits both at home and abroad for his indiscriminate security crackdown that has seen more than 1% of the country's population put in prison.

"A major icing event is forecast through Friday across portions of the southern Great Plains toward the Lower Ohio Valley," the National Weather Service says. Some are saying an ice storm Friday and Saturday will be the nation's worst since 2009.

With summer temperatures hovering around 100 degrees Fahrenheit, residents of Lahore, Pakistan, visit a winter-themed theme park to cool off.

Heavy snow and ice is expected to affect a large portion of the South and Northeast this weekend. In North Carolina, officials are preparing for icy roads and potential power outages.

It seemed like such a good idea: Use cold therapy to reduce the need for opioid painkillers after shoulder surgery. But this woman's insurance company said no dice.

Scientists are analyzing sounds from glaciers to predict exactly how quickly ice is melting and what that could mean for the rise in sea level.