Guardian: Journalist and climate activist Bill McKibben is in Australia in June on his epic Do The Math tour, which aims to highlight the danger of fossil fuel company oil and coal reserves and encourage divestment.
The tour was kick started by McKibben's Rolling Stone article, Global Warming's Terrifying New Math, which argued that in order to stay below the 2C warming limit, the global economy has a budget of less than 565 gigatons of carbon dioxide. Unfortunately, fossil fuel companies have reserves...