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Airs Wednesdays, July 1 - 22, 2015 at 11 p.m. on KPBS TV

Army veteran Steve Holcolm won another bronze medal at the Sochi Olympics, this time for four-man bobsled. He is now the first American bobsled pilot to earn three Olympic medals.

Climate change in the West is luring rainbow trout to higher elevations, where the fish are mating with native cutthroats, genetic evidence shows. Biologists and anglers worry cutthroats could vanish.

More than 120 leaders are expected to attend the one-day summit sponsored by the United Nations. They have been instructed to arrive Tuesday with "bold ideas" to slow the rise in global temperatures.

Over the last 20 years, the number of sheep in the U.S. has plummeted by half. The sheep industry has actually been declining since the late 1940s, when it hit its peak.

The U.S. Fish and Wildlife Service will decide whether to list the greater sage grouse as endangered. Many groups, including some oil and gas firms and a conservation group, don't want that to happen.

The Carlsbad Desalination Plant, now more than 25 percent complete, is on track to begin operation in 2016. It is the largest seawater desalination plant in the Western Hemisphere.

Thirsty San Diego got a little bit of rain last weekend, but mild and dry conditions are setting in once again.

During one of the driest years in Tennessee history, a stunting drought has lowered the local produce quality for local farmers — and the $20 billion farming industry.

The La Niña climate phenomenon has returned and that could be bad news for the drought-ravaged south central states.