The great CO2 swindle ?

Martin Durkin has made a film – The Global Warming Swindle – where he has assembled people that disagree rather violently with the current dogma that global warming is caused by humans through their emission of CO2 into the atmosphere.

The increase in temperature in the last century is about 0.5 degree C. and Durkin’s people say that it is completely caused by an increase in solar activity, and that the level of CO2 in the atmosphere always closely follows solar activity.

The atmosphere consists of 99% nitrogen and oxygen, and CO2 is about 0.003 % of the atmospheric gases, or 350 ppm. Water vapour is the most important climate gas with about 1000 ppm. The CO2 is mostly derived from natural processes like volcano eruptions, animals and bacteria, dying plants, oceans. The human element is less than 10% of this.

Al Gore uses evidence that there is a lot of CO2 in the atmosphere when the temperature is high, meaning that the temperature will rise as we empty CO2 into the atmosphere. The Durkin people challenge this saying the correct way of looking at this is that when the solar activity is high and the temperarture is rising the CO2 level rises after a while – many years after – the temperature is leading the CO2 increase by several hundred years.

There is an almost complete correlation between the sunspot activity and temperature changes for very long time series. The rise in sea level also has to do with expansion of the water mass of the sea, and relative changes in local land levels. The polar icecaps are continually moving back and forth over the years, there is no dramatic effect expected.
The IPCC is said to be political, the evidence is not used the correct way, environmetalists have other agendas, media need dramatic even apocalyptic scenarios to write about, the debate about what is right is strangely enough raging rather shrilly and not in the fashion of deliberate scientists.
There is also the question of who bears the burden. Should the developing nations hold back in their development and not use oil and coal it means they can forget about their economic dreams for their people. If the international community holds these nations back due to the CO2 play, we have a possible conflict coming up.
Durkin’s conclusion is that CO2 is irrelevant in relation to global warming – that is completely controlled by the solar activity.
The origin of the CO2 scenario seems to be Swedish professor Bert Bolin – see link: http://www.bbcc.su.se/about-bert-bolin.html – but he never knew the answer to what CO2 could do.
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