Picked this item up from PhysOrg.com. Meteorologists using 30 different climate models are claiming that they are able to show the main causes for climate change in the 19th and 20th centuries, varying from solar fluctuations, volcanic activity and moving on towards man-made emissions. Bonn meteorologists have now been able to calculate, on the basis of about 30 different climate models, which of the suspects are responsible for climate change: greenhouse gases, particulate matter or natural factors. Their verdict is that they are all guilty. ‘Without the influence of the greenhouse gases the average annual temperature would have only increased by 0.4 degrees,’ is how Professor Andreas Hense summarises the results. ‘However, the fluctuations at the end of the 19th and in the first half of the 20th century are mainly due to changes in solar activity and volcanic eruptions.’ This adds more fuel to the “Global Warming - Man-made or not” fire that continues to burn. It seems all scientists are in agreement that global warming is happening. The contentious issue is whether or not we as humans are responsible.
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