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Are We Dining on a Carbon Sink?: Worldwide, a whopping 27 percent of the globe's ice-free land is under cultivation. That’s 13 million square miles. Have you ever thought what might happen if ... by erica — last modified Oct 28, 2009 09:23 AM — filed under: cap and trade, atmosphere, carbon sink, farmers, David Holmgren, climate change, Bill Mollison, global warming, permaculture, biosphere, perennial crops, no-till farming, carbon, carbon dioxide emissions, agriculture, William Ruddiman — Relevance: 1%
HFCs: Stratosphere, No Problem. Climate, Another Story.: Hydrofluorocarbons or HFCs have replaced those nasty Freons to protect the ozone layer, but those HFCs can still wreak climatic havoc. by erica — last modified Jun 30, 2009 01:08 PM — filed under: atmosphere, ozone hole, Hydrochlorofluorocarbons (HCFCs), climate change, Montreal Protocol, global warming, research, ozone, paper, chlorofluorocarbons (CFCs), science, Hydrofluorocarbons (HFCs) — Relevance: 1%