There is a 99.999 percent chance humans are causing climate change

The 2013 Intergovernmental Panel on Climate Change Fifth Assessment Report noted that it is "extremely likely" that climate change is being driven by humans:

It is extremely likely [defined as 95-100 percent certainty] that more than half of the observed increase in global average surface temperature from 1951 to 2010 was caused by the anthropogenic [human-caused] increase in greenhouse gas concentrations and other anthropogenic forcings together. [IPCC]

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John Aziz is the economics and business correspondent at TheWeek.com. He is also an associate editor at Pieria.co.uk. Previously his work has appeared on Business Insider, Zero Hedge, and Noahpinion.