News Briefing: Former Microsoft Exec is New Gates Foundation CEO

• Jeff Raikes takes over at the Gates Foundation.  [Associated Press]

• A London-based coalition launches funding scheme to address concerns about existing trade in carbon credits.  [Reuters]

• North Korea needs $503 million in food aid between now and November 2009, according to the U.N. World Food Programme.  [Reuters]

• A humanitarian aid flight carrying 17 people crashes in eastern Congo.  [Associated Press]

• Google.org will convene African health, weather, insect, and climate experts in Nairobi to identify research gaps and opportunities for collaboration.  [New York Times]