Proclaiming "give us a chance, we'll deliver" and "2009 will be a new beginning," leaders of several renewable energy groups this week asserted electricity from wind, solar, geothermal, biomass and hydro can help the U.S. make substantial progress toward mitigating the buildup of carbon dioxide in the earth's atmosphere.

"We have to set national goals for these technologies. I don't want you to think that this is going to be easy. But no one should think that renewables are going to be only a small percentage of the future if we decide that is the future we want." -- John Coequyt, Senior Washington Representative, Global Warming and Energy Program, Sierra Club