5000 ppm: What happens when CO2 levels are 20 times higher?
Published 10th November 2009 - 12 comments - 7043 views -
(History of Atmospheric CO2 through geological time. Past 550 million years: from Berner, Science, 1997).
Let us hear a different point of view...
TWENTY TIMES HIGHER
During the quaternary period the CO2 levels never exceeded some 330 ppm. So we are told, that the present 380ppm increase is a disaster with no parallel in the past history.
However if you look futher in the past, you will find out, that the CO2 levels used to be very much higher. When the dinos came, the levels were 4-5 times higher than now. When multi-cellular organisms appeared 500 million years ago, the levels were even 20x higher than now!
Can you imagine the tremendous "acidification of oceans"? Yet there surely was plenty of life in the oceans.
And the temperatures surely were not 5 or 20 times higher. Because in that case around the equator they would have exceeded the boiling point of water. The temperatures were just 3°C higher than now (http://en.wikipedia.org/wiki/File:All_palaeotemps.png) in the Jurassic period.
So how much does CO2 influence the temperatures anyway? If it has any effect at all, maybe it decreases with rising volume.
If the dinos could live with such high CO2 levels for millions of years, please explain to me, why should WE worry? The only impact the CO2 levels had, is that the plants were huge, because they had more food. CO2 is food for plants, you know. Can you imagine wheat as tall as a family house?
Save the plants! Support more CO2 emissions! Maybe instead the 350.org campaign we should start some 3500.org campaign.
The fossil fuels are a real sweetheart. Not only they fuel the industrial revolution which brought to mankind more food than anytime in history. They also help to restore the carbon levels back to comfortable - feeding our malnutritioned vegetation.
What is happening now is just restoration of the CO2 levels we already once had.
Life is based on carbon. Declaring carbon as a "pollutant" is the greatest insanity in history. It is like declaring life a pollutant.
On Earth, life is carbon-based. But carbon is vanishing. Through sedimentation and so on... it slowly is burried underground.
Since the dino times, carbon slowly disappeared from the atmosphere. Plants began to suffer from malnutrition and their size was shrinking and shrinking. Now our drilling operations are returning their nutrition back to them.
To get our carbon back to us, so far we had to rely on tectonics only. If you read Lovelock's Gaia you must surely know, that if carbon wouldn't get released from the underground, life on Earth would have stopped billions of years ago. So far carbon was regularly brought back to circulation due to tectonics and volcanoes (which is unique to Earth in our solar system, as far as we know).
Now we can help the process too, thanks to our dear oil barrons. Exxon, thank you very much. Releasing poor trapped carbon from the Earth is like liberating an innocent prisoner from a POW camp.
It is not true, that elevated CO2 levels (no matter from what source) will lead to a destruction of life, mankind or civilisation on Earth. Life (including humans) will adapt to it just like many times before. So don't panic.
Carbon dioxide through geologic times. [Retrieved 6 November 2009] Available at <http://earthguide.ucsd.edu/virtualmuseum/climatechange2/07_1.shtml>
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