If we continue with business as usual we will see a temperature increase of more than 4ºC above preindustrial temperatures by the end of the century. This is more than double the internationally agreed upon upper temperature limit increase of 2ºC.
According to a report by the Intergovernmental Panel on Climate Change (IPCC) Global greenhouse gas (GHG) emissions increased by the equivalent of ten billion tonnes of carbon dioxide (CO2) between 2000 and 2010. The report entitled Climate Change 2014: Mitigation of Climate Change, is the third of three Working Group Reports, which make up the IPCC’s fifth Assessment Report on climate change.
The report states that we are on track to see temperatures increase of 4.8C above preindustrial times by the end of the century. With half of all human CO2 emissions between 1750 and 2010 having occurred in the last forty years, we are rushing headlong into a climate disaster.
To stay within the 2ºC upper threshold limit we must lower GHG emissions by as much as 70 percent compared to 2010 numbers by mid-century and reaching near-zero emissions by 2100.
© 2014, Richard Matthews. All rights reserved.
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