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Originally Posted by Foxfyre  Doesn't it embarrass you to write stuff like this? CO2 is maybe 1/3 higher now than it was 100 to 200 years ago, but any competent scientist or student of science knows that the vast majority of CO2 in the atmosphere is emitted by the oceans, vegetation, decaying matter in the soil, the soil itself, and seismic activity. It is blatantly FALSE to say that WE have increased the amount of CO2 in the earth's atmosphere by one third.
Further the present levels of CO2 in the atmosphere now are lower than they have been in some previous eras when the average Earth temperatures were lower and there have also been very warm periods on Earth when the concentration of CO2 was up to 20% more than now. Humankind wasn't driving too many SUVs then. Dinosaur farts maybe? |
CO2 in the atmosphere at the highest level ever recorded, and the Antarctic ice core record goes back 600,000 years. What in nature caused the increase? I am sure it had nothing to do with the 8 billion metric tons of CO2 we are pumping into the air each year.
And keep in mind the level of CO2 is still rising and will probably double in this century.