Global warming: do the maths

Bill McKibben, award-winning author, educator, environmentalist and co-founder of

4 June

"Climate change is basically a big maths problem, involving the quantity of carbon we wish to burn and the capacity of the atmosphere to contain it. The question is - how much more can we burn before we’re in trouble?" McKibben 2013

Australia’s continued expansion of coal mining and export is of concern to one of the world’s leading environmentalists, Bill McKibben. Is this one of a handful of projects in the world that would take the planet beyond the point of no return to irreversible climate change?

"The slightly-less-than-one-degree we’ve already raised the global average temperature allowed your ‘angry summer’, a wonderfully poetic description for the destruction of lives and livelihoods by fire and flood. If that’s what one degree of warming will do, it’s actually quite daring to find out what two degrees will bring, using ‘daring’ in the sense of ‘stupid’." McKibben 2013

This will be Bill’s only Sydney event on a national tour of Australia for Come and hear Bill’s clear-eyed view of the global warming maths and learn what his grassroots advice about how to fix the equation.

"Bill McKibben is the most effective environmental activist of our age. Anyone interested in making a difference to our world can learn from him." Tim Flannery

Bill McKibben

Bill McKibben is one of the world’s most respected and admired writers, speakers and activists on global warming. Described by Time Magazine as “the planet's best green journalist”, Bill is the author of a dozen books about the environment, beginning with The End of Nature in 1989, regarded as the first book for a general audience on climate change. His most recent book, Eaarth, is described by NASA’s James Hansen as “blazing a path to help preserve nature’s greatest treasures.” In 2009 Bill co-founded the grassroots climate campaign, which has coordinated 15,000 rallies in 189 countries

Bill holds honorary degrees from a dozen colleges and, in 2011, was elected a fellow of the American Academy of Arts and Sciences. In March this year, he was awarded the American Academy of Arts and Letters’ award for ‘exceptional accomplishment in any genre’.