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Updated: 7 min 33 sec ago

Take A Hike To Do Your Heart And Spirit Good

Tue, 06/23/2015 - 3:45am

For many Americans, an NPR poll suggests, walking is their most consistent exercise. But how much can a moderately paced walk really help your health?

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EPA Official: Decisions On Climate Change Will Affect Economic Future Of U.S.

Mon, 06/22/2015 - 4:40pm

NPR's Melissa Block interviews Environmental Protection Agency administrator Gina McCarthy on the second anniversary of the president's Climate Action Plan.

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Will A Surgical Mask Keep You Safe In A Viral Outbreak?

Mon, 06/22/2015 - 2:47pm

When Middle East respiratory syndrome erupted in South Korea, people started wearing masks everywhere, even at weddings. So how good are these masks at stopping MERS or even the flu?

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'Speed,' Galápagos Tortoise Who Came To San Diego In 1933, Dies At 150

Sun, 06/21/2015 - 12:04pm

The giant reptile was taken from Isabela Island in Ecuador's Galápagos archipelago as part of an early effort to sustain the species, which is native only to the remote Pacific island chain.

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Israel Bets On Recycled Water To Meet Its Growing Thirst

Sun, 06/21/2015 - 8:43am

Treated sewage water accounts for half the water used by Israel's farms. Entrepreneurs are experimenting with ways to cut costs and to ensure that the 86 percent of wastewater that's recycled is safe.

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Fitness App Aims To Deliver Live Feedback From A Personal Trainer 24/7

Sun, 06/21/2015 - 6:03am

The Fitnet app uses your phone's camera to analyze your workout and give feedback. Next step is a live trainer on the other end. The hitch: Your Internet speed likely needs to be 40 times faster.

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Volunteer Rangers Work To Rein In Antler Poachers

Sat, 06/20/2015 - 7:15am

The popularity of antlers as rustic décor is threatening deer and elk in the Pacific Northwest. The animals can naturally shed antlers, but some people harass or kill animals to get at prized racks.

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Proposed Oil Refinery Could Help Washington State Meet Clean Fuel Standards

Fri, 06/19/2015 - 3:53pm

The push for cleaner fuels in Oregon and Washington could bring the region more crude oil and a new refinery along the Columbia River. It would be the first refinery on the West Coast in 25 years.

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The Neighs Have It: Horse Outruns Man, But Just Barely

Fri, 06/19/2015 - 3:31pm

The annual Man v. Horse Marathon in Wales sounds like a lopsided contest favoring racers with four feet. But scientists say that Homo sapiens evolved to be incredible endurance athletes, too.

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Administration Proposes New Truck Emissions Rules To Reduce CO2

Fri, 06/19/2015 - 11:27am

The new rules, yet to be finalized, were expected to cut greenhouse gas emissions by a quarter by the year 2027.

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Hunting Ways To Keep Synthetic Estrogens Out Of Rivers And Seas

Fri, 06/19/2015 - 11:09am

Hormones from medical treatments wind up in wastewater, and that can be a problem. Some scientists think a version of a household chemical, hydrogen peroxide, could be part of the solution.

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'They Will Strafe You,' Bird Expert Says Of Seattle's Dive-Bombing Crows

Fri, 06/19/2015 - 9:24am

"We had crows literally come down and tap me on the head, trying to scare me," a man says of crows that aggressively swoop at humans.

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Why Does Time Exist?

Fri, 06/19/2015 - 7:36am

Cosmologist Sean Carroll tackles a deceptively simple question: Why does time exist at all? The potential answers point to a surprising view of the nature of the universe, and our place in it.

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Why Should We Look Forward To Getting Older?

Fri, 06/19/2015 - 7:36am

Psychologist Laura Carstensen says that as people get older, they usually become less stressed and more content.

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When Do We Become The Final Version of Ourselves?

Fri, 06/19/2015 - 7:36am

Dan Gilbert shares research on what he calls the "end of history illusion," where we think the person we are right now is the person we'll be for the rest of time. Hint: that's not the case.

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Once And Future Nut: How Genetic Engineering May Bring Back Chestnuts

Fri, 06/19/2015 - 7:28am

The American chestnut is poised to return — as a bionic, blight-resistant tree. Scientists hope to plant about 10,000 transgenic plantlets to pollinate trees in the "wild."

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Worried You Have An STD? This App Helps You Quietly Find Out

Fri, 06/19/2015 - 6:03am

Planned Parenthood has an app that offers discreet help for Californians seeking to get tested for chlamydia or gonorrhea.

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DNA Tracking Of Ivory Helps Biologists Find Poaching Hotspots

Fri, 06/19/2015 - 4:03am

To stop elephant slaughter in Africa, zoologist Sam Wasser spent years extracting DNA from elephant dung and tissue. Much of the world's poached ivory, he discovered, comes from just three places.

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Pope Francis Uses Encyclical To Deliver Moral Message On Climate Change

Thu, 06/18/2015 - 4:15pm

NPR's Melissa Block speaks to John Carr of Georgetown University's Initiative on Catholic Thought and Public Life about Pope Francis' call to moral action on climate change.

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Both Catholics, Non-Catholics Applaud Pope For Bold Remarks On Climate Change

Thu, 06/18/2015 - 3:26pm

Catholics across the nation are reacting to a sweeping encyclical issued by Pope Francis on the issue of climate change. The 184-page papal letter explains that it is a global problem with far reaching environmental and social ramifications.

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