Are biofuels earth-friendly? Two recent studies in the journal Science argue that biofuels like ethanol might contribute to global warming. As the U.S. looks increasingly at alternatives to fossil fuel, how much should we rely on biofuels?9:06 a.m.
Joe Fargione: Regional science director for the Nature Conservancy.
Timothy Searchinger: Researcher at the Woodrow Wilson School of Public and International Affairs at Princeton University.
Bill Lee: General manager of the Chippewa Valley Ethanol Company in Benson, MN. He is the former chairman of the Renewable Fuels Association.
The meaning of a Microsoft, Yahoo merger Microsoft and Yahoo are in preliminary stages of a possible merger that would be enormous by standards of the tech industry. The two companies combined may challenge dominant Google, but they are like all Internet-driven companies as they try to devine the next great uses of the Web.10:06 a.m.
Jay Greene: Seattle bureau chief for Business Week magazine.
Steve Johnson: Internet critic for the Chicago Tribune. He writes the Hypertext blog on the culture of technology.