The Salt

Vertical 'Pinkhouses:' The Future Of Urban Farming?()  

This "pinkhouse" at Caliber Biotherapeutics in Bryan, Texas, grows 2.2 million plants under the glow of blue and red LEDs.

May 21, 2013 Architects have come up with spectacular concepts for vertical farms that would grow crops in city skyscrapers. But many horticulturists think the future of vertical farming isn't in skyscrapers, but rather in large, indoor warehouses lit up magenta by superefficient LEDs.

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The Two-Way

Measuring The Power Of Deadly Tornadoes()  

John Warner surveys the damage near a friend's mobile home in the Steelman Estates Mobile Home Park, destroyed in Sunday's tornado, near Shawnee, Okla., on Monday.

May 20, 2013 Tornado strength is currently measured on what is called the Enhanced Fujita Scale, which gives the tornado a rating from 0 to 5 based on estimated wind speeds and the severity of the damage.

Summary

Around the Nation

Impossible Choice Faces America's First 'Climate Refugees'()  

The 350 residents of Newtok, Alaska, will soon be the country's first "climate refugees." The U.S. Army Corps of Engineers says the village is likely to be underwater in just four years.

May 18, 2013 The U.S. Army Corps of Engineers says the tiny town of Newtok, Alaska, could be completely underwater by 2017. Its 350 residents must relocate or stay to face the floods, but a move is easier said than done.

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On All Things ConsideredPlaylist

Parallels

Afghan Mineral Treasures Stay Buried, Hostages To Uncertainty()  

An Afghan worker helps excavate part of the mountaintop copper works above the ancient city at Mes Aynak in February. Afghanistan is believed to be sitting on massive mineral and metal deposits. But many obstacles have prevented large-scale mining from getting underway.

May 18, 2013 Afghanistan is believed to be home to world-class mineral deposits, valued at up to $3 trillion and offering hope for the country's economic future. But in the current environment of uncertainty, investors are nervous and it could be many years before Afghanistan strikes pay dirt.

Transcript

On Weekend Edition SaturdayPlaylist

Not Your Grandpa's RV: This Roving Lab Tracks Air Pollution()  

Ira Leifer, next to an RV he has outfitted with methane sensors and other equipment to sniff the air.

May 18, 2013 Atmospheric scientist Ira Leifer installed special air sensors on a camper, then drove from Florida to California, measuring methane levels all along the way. More than 6,000 readings later, he found some noticeable spikes, especially around petrochemical plants and urban areas like Los Angeles.

Transcript

On Weekend Edition SaturdayPlaylist

TED Radio Hour

Ron Finley: How Can You Give A Community Better Health? ()  

Ron Finley, renegade gardener, says food is both the problem and the solution.

May 17, 2013 Ron Finley plants vegetable gardens in South Central LA — in abandoned lots, traffic medians, along the curbs. He hopes to offer some alternative to fast food in a community where "the drive-thrus are killing more people than the drive-bys."

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On TED Radio HourPlaylist

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Map of Asia. Credit: NPR

Map: Carbon Emissions Giants

Who are the biggest carbon polluters today? Who will it be in 2030?

Amazon forest

Climate Strategists: Focus On Forests To Cut Emissions

The basic idea: Let rich countries pay poor ones to save and even expand carbon-absorbing forests.

Marsh grasses in California

Can 'Carbon Ranching' Offset Emissions In Calif.?

Farmers hope money they make from capturing greenhouse gases would make up for the lost acreage.

China

What Countries Are Doing To Tackle Climate Change

Many of the world's major greenhouse gas emitters are forging their own plans to cut emissions.

A carbon atom. Credit: OddTodd

Global Warming? It's All About Carbon

An animated Robert Krulwich chemistry lesson -- in five episodes.

Red marks area of potential flooding in Florida. Credit: NPR

Rising Temperatures, Disappearing Coastlines

See what climate change could do to a coastline near you.

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