I'm Michel Martin and this is TELL ME MORE from NPR News. Summer is the time when many people decide to take that trip they've been putting off to visit distant relatives, introduce the kids and maybe even bring home some business. Presidents are no different. President Obama and his family are in Africa now. It'll be the longest visit to Africa of his presidency and has been much anticipated on the continent, after his barely 24-hour visit to just one country, Ghana, in his first term.
This is SCIENCE FRIDAY, I'm Ira Flatow. President Obama announced a plan this week calling on the environmental protection agency to regulate how much carbon power plants are allowed to emit. He had tried and failed to get Congress to act on climate change from the very first days of his presidency. This week in a speech at Georgetown University, he announced it was time to take matters into his own hands.
This is SCIENCE FRIDAY, I'm Ira Flatow. Back in 2007, Congress funded, and the president signed into law, a new kind of research organization, the Advanced Research Projects Agency-Energy, or ARPA-E. You had heard of DARPA? This was ARPA-E. And its mission is to back energy technologies that are too risky for investors but offer a potentially huge payoff if they work.