https://www.nytimes.com/2017/03/02/science/australia-heat-climate-change.html?hp

Southeastern Australia has suffered through a series of brutal
heat waves over the past two months, with temperatures reaching a scorching 113
degrees Fahrenheit in some parts of the state of New South Wales.

“It was nothing short of awful,” said Sarah Perkins-Kirkpatrick, of the Climate
Change Research Center at the University of New South Wales, in Sydney. “In
Australia, we’re used to a little bit of heat. But this was at another level.”

So Dr. Perkins-Kirkpatrick, who studies climate extremes, did what comes
naturally: She looked to see whether there was a link between the heat and
human-driven climate change.

Her analysis, conducted with a loose-knit group of researchers called World
Weather Attribution, was made public on Thursday. Their conclusion was that
climate change made maximum temperatures like those seen in January and February
at least 10 times more likely than a century ago, before significant greenhouse
gas emissions from human activity started warming the planet.