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UNDER THE MICROSCOPEA small but growing view is that global warming is a natural process - nothing to do with human activity, writes Dr William Reville

GLOBAL warming/climate change is a very serious and important issue. It has been under scientific investigation since 1986 by the UN-sponsored Intergovernmental Panel on Climate Change (IPCC). The IPCC declares global warming is a fact and it is driven largely by emissions of greenhouse gases from human activities (IPCC Report 2007 - www.ipcc.ch/). I have reported the IPCC reports uncritically in this column, but a growing number of scientists are now presenting evidence that contradicts the IPCC position and I will give you a flavour of their position in this article.