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Copyright 2016 NPR. To see more, visit http://www.npr.org/.

Copyright 2016 NPR. To see more, visit http://www.npr.org/.

Copyright 2016 NPR. To see more, visit http://www.npr.org/.

Arizona Hispanics Poised To Swing State Blue

24 minutes ago
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Copyright 2016 NPR. To see more, visit http://www.npr.org/.

Edit note: This report contains accounts of rape, violence and other disturbing events.

Sex trafficking wasn't a major concern in the early 1980s, when Beth Jacobs was a teenager. If you were a prostitute, the thinking went, it was your choice.

Jacobs thought that too, right up until she came to on the lot of a dark truck stop one night. She says she had asked a friendly-seeming man for a ride home that afternoon.

Jacobs says he gave her something in an old McDonald's cup — a drug — and as she was waking up the man announced that he was a pimp. Her pimp.

The Boston Citgo sign, all 3,600 square LED feet of which has served as the backdrop to Red Sox games since 1965, is now officially a "pending landmark."

Spanish Surrealist Salvador Dalí spent much of the 1940s in the U.S., avoiding World War II and its aftermath. He was a well-known fixture on the art scene in Monterey, Calif. — and that's where the largest collection of Dalí's work on the West Coast is now open to the public.

Copyright 2016 Fresh Air. To see more, visit Fresh Air.

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Australia's Heron Island: A Canary In The Coal Mine For Coral Reefs?

Mar 19, 2013
Originally published on March 22, 2013 11:02 am

NPR Science Correspondent Richard Harris traveled to Australia's Great Barrier Reef to find out how the coral reefs are coping with increased water temperature and increasing ocean acidity, brought about by our burning of fossil fuels. Day 1: Richard gets a hefty dose of bad news.

I've seen the future, and it isn't pretty.

That's a tough sentence to write because the setting for this unhappy discovery is spectacular. Heron Island sits in tropical turquoise waters about 25 miles off the northeast coast of Australia. It's an island on the far southern end of the Great Barrier Reef — one of our planet's most dramatic natural features, akin to the tropical rain forests, only submerged.

The low vegetation is filled with fearless and noisy sea birds. Snorkelers watch as graceful turtles swim toward the coral sand beaches — it's egg-laying time for them.

Within earshot of the lapping waves is a modern scientific laboratory, the Heron Island Research Station. And that's where the topic turns from tropical relaxation to a nagging anxiety about the future of the world's coral reefs.

Sophie Dove, from the University of Queensland in St. Lucia, has spent the past couple of years crafting an experiment to see what will happen to coral reefs as the ocean absorbs ever more of the carbon dioxide and heat we've added to our planet's thin skin. She's gathered a variety of coral species from the island's nearby reef and placed them in tanks that look like a cross between a kettle drum and an oversized plant pot.

Into one set of these pots, she has put seawater at the reef's current temperature and carbon dioxide concentration. A second set circulates water that's somewhat cooler and has less carbon dioxide — conditions the reef experienced 100 years ago, before we started burning fossil fuels and pouring huge amounts of carbon dioxide into the atmosphere.

Two final sets of tanks hold water that's warmer and contains far more carbon dioxide than the oceans absorb today. These are glimpses into our perhaps not-so-distant future.

Carbon dioxide matters to coral because when it soaks into sea water, it turns into carbonic acid. We've put so much carbon dioxide into the atmosphere that the oceans are already 30 percent more acidic now than they were before the Industrial Revolution. And as acidity increases, it becomes harder and harder for corals to build their calcium structures. Eventually, corals will need to expend a lot of energy just to prevent their skeletons from dissolving into seawater.

Heat is also a problem. Most of the additional heat that Earth has absorbed as a result of the enhanced greenhouse effect has in fact been soaked up by the world's oceans. In fact, we're really experiencing ocean warming more than global warming.

The result?

Dove opens up the first of these tanks — present-day conditions. The corals look like they came from a picture book of life on the reef. The second tank, pre-industrial, looks about the same, though Dove says those corals are actually growing faster and are healthier than those growing in modern-day seawater.

The third and fourth tanks are the shockers. Most of the corals have died in this "future" world. A gelatinous black slime floats across the top of one tank. Corals still hanging in there have lost the colorful organisms that live inside those calcium skeletons, so they are bleached white.

Scientists have been worrying about this for well over a decade. It's taking some time for the experimental evidence to catch up with the basic chemistry, which strongly suggests that many marine animals that build shells from calcium are going to have it rough as carbon dioxide builds up in the water. Add heat, and the situation for these corals is grim.

That's not the end of the story, thankfully. This experiment offers a glimpse at our most likely future, but it's not the only possible path. Carbon dioxide levels and sea temperatures depend on what humanity does over the coming decades.

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