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Present Global Warming Consistent With Predictions Made 22 Years Ago

Arctic sea ice record low extent

In 1990, the Intergovernmental Panel on Climate Change (IPCC) predicted temperature rises that would occur over the next 40 years if climate change was left unchecked. According to a new report published in the journal Nature, the Earth has been warming at a rate consistent with these predictions made 22 years ago.

“Anybody out there lying that the IPCC projects are overstatements or that the observations haven’t kept pace with the projections is completely off line with this,” said Professor Matt England from the University of New South Wales. “The analysis is very clear that the IPCC projections are coming true.”

Reports have shown that emissions are increasing by about 3% a year, with an increase of about 58% over the last 22 years. According to Professor England, forecasts are available on the low end and high end of emissions, and at the moment, the high end rates are being used. He also mentioned that if no action on lowering emissions occurs, it will be the high-end scenarios that cause the most damage. Those scenarios are scary, to say the least.

It’s reports like this that give even more weight to the existence of human-caused climate change. Despite some remaining skepticism, nearly all from outside the scientific community, it is undeniable that serious action needs to take place as soon as possible.

Image: Scientific Visualization Studio, NASA Goddard Space Flight Center: Arctic sea ice at a record low extent in 2012.

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