I am just watching an interesting and controversial documentary arguing against the whole Global Warming issue. It is fairly well documented, and backed by many eminent researchers.
"Al Gore might have won an Oscar for 'An Inconvenient Truth', but the film is very misleading and he has got the relationship between CO2 and climate change the wrong way round."
Nobody in the documentary defends the greenhouse effect theory, as it claims that climate change is natural, has been occurring for years, and ice falling from glaciers is just the spring break-up and as normal as leaves falling in autumn.
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