Mar
16th
Wed
16th
Many people don’t realize that over geological time, we’re really in a CO2 famine now. Almost never has the CO2 level been as low as it has been in the Holocene (current geologic epoch) - 280 (ppm) that’s unheard of. Most of the time [CO2 levels] have been at least 1000 (ppm) and it’s been quite higher than that.
— Professor William Happer, a physicist at Princeton, testifying in 2009 at the US Senate EPW Commitee Hearings
