In a series of posts late last year, I explained that the effect of increasing ocean acidification from the rapid rise in CO2 levels over the next century was enough for me to drop scepticism about the worthiness of programs to seriously reduce CO2 emissions. The benefit of this approach means you don't really have to continue worrying about who is right in terms of how much the temperature will increase, and what effect it will have on climate generally.
Still, it is interesting to see that arxiv has published last week a very lengthy article arguing that the physics of CO2 warming is completely wrong. (Maybe this argument has already been discredited, as I haven't followed all of the skeptics arguments all that closely over the years. It is hard to believe that thousands of other scientists are wrong.)
In any event, it would be nice if we didn't get as hot as predicted because of misunderstood atmospheric physics.
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