Scientists have known for some time that genes play a role in disorders like major depression, bipolar disorder, autism, schizophrenia and ADHD. But a major new study published in the journal Lancet suggests that those five disorders may actually share some of the same genetic links. The study analyzed the DNA of more than 60,000 people around the world. Jordan Smoller is a professor of psychiatry at Massachusetts General Hospital and Harvard Medical School. And he helped lead the study. I asked him what the study set out to find.
The way Americans get their electricity is changing. Coal is in decline. Natural gas is bursting out of the ground in record amounts. And the use of wind and solar energy is growing fast. All this is happening as power companies are trying to choose which kind of energy to bet on for the next several decades.
Until recently, half of these plants burned coal to make electricity. Now, that's down to about one-third. Since 2010, about 150 coal plants either have been retired or it's been announced they will be retired soon.
Originally published on Fri March 1, 2013 12:03 pm
Rep. Lamar Smith (R-Texas), Chairman of the House Committee on Science, Space and Technology, discusses the nation's top science priorities, including the importance of research on how to protect Earth from dangerous asteroids. But in a tight budgetary climate, who will pay?