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Environment
Not Your Grandpa's RV: This Roving Lab Tracks Air Pollution
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.
Shots - Health News
A Small Shock To The System May Help Brain With Math
May 16, 2013 The results are preliminary, and alpha parents seeking an edge for their children shouldn't risk electrocution. Still, the findings are provocative and may lead researchers down a new road.
Water Trapped For 1.5 Billion Years Could Hold Ancient Life
May 16, 2013 Scientists have discovered water that was sealed in Canadian bedrock for nearly half of Earth's history. It may contain the descendants of ancient microbes. The discovery could give scientists new insights into early life on Earth and inform the search for life on other planets.
Shots - Health News
How Researchers Cloned Human Embryos
May 15, 2013 After decades of trying, scientists say they've finally figured out how to make personalized embryonic stem cells. One day, these designer cells may help treat an array of diseases. A jolt of caffeine and and a little electric shock helped to do the trick.
The Salt
Go Fish (Somewhere Else): Warming Oceans Are Altering Catches
May 15, 2013 Fish are moving away from the equator and toward the poles to maintain their preferred water temperature. That means, for example, that fishermen are seeing swordfish normally found in the Mediterranean swimming near Denmark. But in the tropics, there are no fish to replace the ones that are leaving.
Shots - Health News
Scientists Clone Human Embryos To Make Stem Cells
May 15, 2013 The achievement is a long-sought step toward harnessing the potential power of such cells to treat diseases. But the discovery raises ethical concerns because it brings researchers closer to cloning humans.
Environment
With Rising Seas, America's Birthplace Could Disappear
May 14, 2013 By the end of the century, ocean levels could rise by 2 or 3 feet. That's enough to flood the colonists' first settlement at Jamestown, Va. And it's putting pressure on archaeologists to get as many artifacts out of the ground as quickly as possible — before it's too late.
The Salt
Why Humans Took Up Farming: They Like To Own Stuff
May 13, 2013 The appeal of owning your own property — and all the private goods that came with it — may have convinced nomadic humans to settle down and take up farming. So says a new study that tried to puzzle out why early farmers bothered with agriculture.
Environment
Atop A Hawaiian Mountain, A Constant Sniff For Carbon Dioxide
May 13, 2013 Since 1958, researchers have been measuring the amount of carbon dioxide in the atmosphere at the Mauna Loa Observatory. The remote outpost has just reported a carbon dioxide level of 400 parts per million — the highest it has climbed in the modern age.
Environment
'Dangerous Territory': Carbon Dioxide Levels Reach Milestone
May 10, 2013 The amount of carbon dioxide in the atmosphere has crossed the "psychological threshold" of 400 parts per million. That number is one of the clearest measures of how humans are changing the planet by burning fossil fuels.
Shots - Health News
Enhanced Motion Perception in Autism
May 10, 2013 To test a common theory about the cause of autism, researchers recently studied how kids with autism process moving images. They found that the kids saw simple movements twice as fast as their typically developing peers.