The Science of Climate Denialism

In a previous posting, I argued that it is important for everyone to have some understanding of climate science – which is why Medact produced a summary and discussion of the latest UN report about the physical science of climate change. I also questioned the scientific understanding of Owen Paterson, Minister for Environment, Food and Rural Affairs following his ill-judged comments on the UN report. But why is there is so much scepticism and denial about the evidence of anthropogenic global warming?