Who would have guessed?

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A leaked draft of a report by the UN Intergovernmental Panel on
Climate Change is understood to concede that the computer predictions
for global warming and the effects of carbon emissions have been
proved to be inaccurate.

The report, to be published later this month, is a six year assessment
which is seen as the gospel of climate science and is cited to justify
fuel taxes and subsidies for renewable energy.

The “summary for policymakers” of the report, seen by the Mail on
Sunday, states that the world is warming at a rate of 0.12C per decade
since 1951, compared to a prediction of 0.13C per decade in their last
assessment published in 2007.

Other admission in the latest document include that forecast computers
may not have taken enough notice of natural variability in the
climate, therefore exaggerating the effect of increased carbon
emissions on world temperatures.
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http://www.telegraph.co.uk/earth/environment/climatechange/10310712/Top-climate-scientists-admit-global-warming-forecasts-were-wrong.html