[gondramB]

>>I’m not sure this is good news. he seems to be saying that the reason temperatures have not been higher has been because of a temporary low in sunspots - that doesn’t mean CO2 isn’t still a big a factor.

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I’d like to see why skepticism about a trace gas at 388 parts per million, IIRC, is supposed to elicit much concern, IHMO, when it has so many natural sinks. <<

Its because thats so much higher than at any time humans have been on the earth and that temperatures are also at a peak and that there is good theoretical reasoning to think that CO2 causes warming. Plus a very strong correlation for 100,000 years +

[Darwin Fish]

"Its because thats so much higher than at any time humans have been on the earth and that temperatures are also at a peak and that there is good theoretical reasoning to think that CO2 causes warming. Plus a very strong correlation for 100,000 years +"

Actually, most of the development of both our humanoid ancestors and plant life occurred when CO2 was around 1000 ppm. We are presently at a much lower level than that. Also, the earth has been much warmer in the past 1000 years, and much, much warmer in the past 500,000 years, when humans really developed. I'm not sure where you get off making the statements that you do.

[John Valentine]

Its because thats so much higher than at any time humans have been on the earth and that temperatures are also at a peak and that there is good theoretical reasoning to think that CO2 causes warming. Plus a very strong correlation for 100,000 years +

THIS staement of yours is complete hogswollop.