Friday, October 15, 2010

Is there an "outer limit" on acceptable carbon dioxide levels?

Tom Harris has a front page Commentary Section again playing denial on climate change, in The Washington Times, Friday Oct. 15, 2010. “Time to get real about climate change: 10/10/10 and 350.org based on urban legend, not science”.

The 350 site appeared to be in Portuguese the first time I tried it -- but then it went English; founder Bill McKibben seems to be saying that 350 parts per million of carbon dioxide in the Earth’s atmosphere are an “outer limit” (pun to the 60s sci-fi show intended) on a sustainable climate, to keep us from becoming another Venus.  (Somehow "350" reminds me of AC360.)

He says there has never been a “reputable worldwide poll” of scientists to establish anything like this, and goes on with metaphors between climate change denial and Holocaust denial. But one cannot dispute the differential calculus of Al Gore’s “show and tell” lecture in his “An Inconvenient Truth” a few years ago.

The link is here.

Somehow it seems to me that rigid “outer limits” could not be compatible with the emergence and development of life on Earth or any planet, however.

What can make this more complicated is other gasses, like methane (bovine and himan flatulence), locked in the oceans as a hydrate now.  But it might not take too much to release it.

Picture: A park in Kipton, Ohio, Oct. 2010

1 comment:

Transcription Medical said...

May be there will outer limit for carbon dioxide levels..
Thank you for the post..