CHICAGO (Reuters) - President-elect Barack Obama underscored on Saturday his intent to push initiatives on climate change by naming John Holdren, an energy and climate specialist, as the new White House science adviser.

Holdren is a Harvard University physicist who has focused on the causes and consequences of climate change and advocated policies aimed at sustainable development. He has also done extensive research on the dangers of nuclear weapons.

Is that laundry soap truly "environmentally friendly"? Was that mattress treated with toxic chemicals? Is that sweatsuit fashioned from organic cotton? Is that lipstick "natural"?

California officials launched a sweeping green initiative on Tuesday to inform consumers exactly how hundreds of thousands of products sold in the state are manufactured and transported and how safe their ingredients are.

Nobody loves biomass. When talk turns to global warming and the green movement, it's hardly ever mentioned. Biomass can be garbage (literally) or wood chips or sugar-cane remnants or grass.

Still, among energy experts, biomass has some strong supporters, and for good reason: Right now, virtually all the renewable-energy power in Florida comes from biomass, including three plants in Miami-Dade and Broward.