There have always been tough times and lush times”, said the Prime Minister Tony Abbott yesterday when asked about drought and climate change .But the Bureau of Meteorology says 2013 was Australia’s hottest year on record. And few scientists now doubt that that is the result of man-made climate change.

That includes some former skeptics in the scientific community who formerly doubted whether climate modeling could be trusted to forecast warming. Among them is one of Australia’s most respected agricultural scientists, Melbourne University’s Professor Snow Barlow. I asked him if it was fair to call him a former climate change sceptic.

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