Climate Change: evidence points to ‘positive feedback’

by Richard on May 28, 2006

Two recent studies provide further evidence that climate change sceptics are simply burying their heads in the sand. Both studies, one in Europe the other in the US are showing that not only does increasing atmospheric CO2 lead to higher temperatures, but that higher temperatures appear to cause CO2 to increase. That’s a ‘psitive feedback loop’ kids. Great if you’re trying to get your amp to howl. Very bad if you want a stable, sustainable climate.

First, researchers at Wageningen University (Netherlands), the Potsdam Institute for Climate Impact Research (Germany) and the Centre for Ecology and Hydrology (UK) have been examining data from proxy sources (ice cores and such) over the period following the Middle Ages’ ‘little ice age’. Their findings strongly suggest that global warming will be accelerated by the effects of climate change on the rate of carbon dioxide increase.

Second, scientists at the Lawrence Berkeley National Laboratory studying the Vostok ice core data have found that the 21st Century may get warmer than we thought

In their GRL paper, Torn and Harte make the case that the current climate change models, which are predicting a global temperature increase of as much as 5.8 degrees Celsius by the end of the century, may be off by nearly 2.0 degrees Celsius because they only take into consideration the increased greenhouse gas concentrations that result from anthropogenic (human) activities.

“If the past is any guide, then when our anthropogenic greenhouse gas emissions cause global warming, it will alter earth system processes, resulting in additional atmospheric greenhouse gas loading and additional warming,” said Torn.

[tags]climate change, global warming, co2, feedback[/tags]

{ 3 comments… read them below or add one }

1

Jen 05.28.06 at 6:42 pm

Did you see David Attenborough’s new series ‘Are we changing Planet Earth?’? It was really good. Think the next program is on Thursday.

2

Richard 05.29.06 at 10:48 am

I missed it, I’m afraid. Not much chance of me watching it this week, either. Why is it that when you actually want them to repeat something…

3

Joseph Smith 07.15.10 at 4:12 am

Does not matter that a consencus exists pointed towards man made climate change.Fact is its wrong.Its junk science.Fact is our planet is moving closer to the Sun at a rate of 3″ per hour and has been for millions of years.This contributes to climate change as there is a higher concentration of solar particles (uv etc)per cubic foot of air space the closer we get to the Sun.I have the math to prove this and will soon be sharing this on my up and coming website.Email me with your thoughts.

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