"There is a point of no return after which warming becomes unstoppable - and we are probably going to sail right through it. It is the point at which anthropogenic (human-caused) warming triggers huge releases of carbon dioxide from warming oceans, or similar releases of both carbon dioxide and methane from melting permafrost, or both. Most climate scientists think that point lies not far beyond 2 degrees C hotter (3.6 degrees F)."

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Source: Four harsh truths about climate change by Gwynne Dyerer, www.woodstocksentinelreview.com. December 4, 2008.

About the author

Gwynne Dyer

Journalist

Gwynne Dyer is a Canadian journalist and historian known for his analysis of global conflicts and his influential book 'War'.

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