GLOBAL WARMING: PERSONAL SOLUTIONS FOR A HEALTHY PLANET

Take the following facts, for example, which can also convey the size of the problem: human activities now emit over 7 billion metric tons of carbon into the atmosphere every year; atmospheric concentrations of greenhouse gases are reaching unprecedented levels compared to the last 650,000 years; and the increased human-induced radiative forcing could be unprecedented compared to the last 20,000 years. Spence says "global warming ... is causing wild temperature swings and a dramatic rise in storms" while neither the Intergovernmental Panel on Climate Change (IPCC) Third Assessment report in 2001 nor the new published literature unambiguously support that claim.