When it comes to getting U.S. federal government funding to deliver clean technology innovation and save us from the energy and global warming crisis, how much is enough ? Dan Kammen, director of UC Berkeley’s Renewable Energy Labs, touched on that subject at both the Cleantech for Obama launch party and the National Science Board Task Force on Sustainable Energy last week. Kammen has previously called for at least a five-to-tenfold increase in federal energy R&D spending from annual federal budget levels — a tenfold increase in spending would deliver, over a decade, more than $150 billion for federal energy R&D. (read more)