White House solar panels: The solar panels are to be installed by spring 2011, and will heat water for the first family and supply some electricity.
US Energy Secretary Steven Chu discusses his proposals to encourage the peaceful use of nuclear power at this year's International Atomic Energy Agency gathering in Vienna.
Environmental activists were delighted to have Barack Obama replace George W. Bush as president. But greens are increasingly unhappy with Obama’s record – especially on climate change.
A child dressed as clown attends a mass at the Basilica of Guadalupe in Mexico City on Wednesday. Hundreds of clowns took part in the annual event to thank the Virgin of Guadalupe for helping them find work through the year, according to local media.
Scientists revised the estimated flow rate for a fifth time Tuesday, saying between 35,000 and 60,000 barrels a day are leaking from the well. That could mean that nearly 3 million barrels of oil have gushed into the Gulf since the oil spill began April 20.
Reason No. 1: Temporary receivership is the only way to ensure BP tells the truth about the Gulf spill.
After BP's repeated failed attempts to cap the well at the center of the Gulf oil spill, the Obama administration is gradually becoming more involved. This week, it has sent two cabinet members to the scene and devoted more of its science resources to the relief effort.
Miniature, mass-produced nuclear power plants, along with other alternative energy sources, can help the US address global warming, says Energy Secretary Steven Chu. Critics see that plan as raising the risk of proliferation of nuclear materials.
The Bush administration agreed to store nuclear waste from 21 new reactors. But the federal government still can't meet its commitment to find permanent storage.
Currently, the US has no permanent disposal site for nuclear waste. A new presidential commission is exploring ways to solve the problem of storing highly radioactive spent nuclear fuel.