The Keystone XL oil pipeline may be closer to being built. The U.S. State Department's released an environmental impact statement that says the project would not make climate change any worse, and it's now up to President Obama to decide the fate of the pipeline. NPR's Jeff Brady reports that environmental groups and many Democrats want the president to reject the review's findings.
Originally published on Fri January 31, 2014 4:11 pm
The State Department says that production of Canadian tar-sand crude, which has a bigger greenhouse gas footprint than other types of oil, is unlikely to be increased if the Keystone XL pipeline goes ahead — and therefore would do little to contribute to climate change.
The asteroid belt, a ring of rubble between Mars and Jupiter, has sometimes been written off as discarded leftovers from the solar system's start. But new research published in the journal Nature shows that the belt actually formed during an unruly later era, when planets themselves were on the move.
Originally published on Mon January 27, 2014 7:38 am
The National Weather Service is warning, once again, that brutally cold weather is going to be spreading across much of the nation, from the upper Midwest down to the deep South and up through the mid-Atlantic, Northeast and New England.
The Weather Service even throws an exclamation point into its forecast for this week:
New commercial devices, using technology borrowed from the field of neuroscience, are making it possible to control objects with brain power alone. The idea is to help train users to become more focused — and relaxed.
EEG headsets, which detect electrical activity in the brain, were once found only in research labs. Today, the technology has become cheaper and easier to use. That's made it possible to connect EEG headsets to other consumer devices.
The world's biggest trees, such as this large Scots pine in Spain's Sierra de Baza range, are also the world's fastest-growing trees, according to an analysis of 403 tree species spanning six continents.
Credit Asier Herrero / Nature
The General Sherman, a giant sequoia in California's Sequoia National Park, is more than 2,000 years old, and is thought to be the largest tree (by volume) in the world.
Like other animals and many living things, we humans grow when we're young and then stop growing once we mature. But trees, it turns out, are an exception to this general rule. In fact, scientists have discovered that trees grow faster the older they get.
Once trees reach a certain height, they do stop getting taller. So many foresters figured that tree growth — and girth — also slowed with age.
In the world of music, there is no more remarkable gift than having perfect pitch. As the story goes, Ella Fitzgerald's band would use her perfect pitch to tune their instruments.
Although it has a genetic component, most believe that perfect pitch — or absolute pitch — is a primarily a function of early life exposure and training in music, says Takao Hensch, professor of molecular and cellular biology at Harvard.