Space/Science — HabitableZone

Space/Science » in reply to lifetime of anthropogenic CO2

re: lifetime of anthropogenic CO2
gbaikie — (archived)

"So according to his measure of lifetime of a substance...'CO2 pulse... hang around for.. ohh...' a year maybe at most, probably a month."

Mean lifetime of the extra CO2 is 30k years, with 3/4 of the global warming impact happening in the first several hundred years: http://www.realclimate.org/index.php?p=134#more-134

With his CO2 and H20 comparison, he says basically that it rains a lot and therefore because a lot of water goes through this cycle in comparison to total H20 in the air that means the lifetime of water in atmosphere is short- about a week according to him. But he doesn't apply the same measure to CO2. The cycle involving CO2 is also large in comparison to total CO2 content in the air, and therefore "according to his measure" it is also short time period- similar to H20.

As for this idea of "mean lifetime of extra CO2" being 30,000 years, I think he has found enough rope.

In the meanwhile, I find it amusing that Japan is failing to meet it's Kyoto agreement. And their solution is that business men are not suppose to wear suits because they going to cool the office building less, making their work environment more sweaty and probably to going to cause more of their binge drinking:)

Log in or register to post.

The whole thread (40 posts)