“Today, after two decades of bluff and lies, the remaining 2°C budget demands revolutionary change to the political and economic hegemony.” That was in a blog posting last year by Kevin Anderson, Professor of Energy and Climate Change at Manchester University. One of Britain’s most eminent climate scientists, Anderson is also Deputy Director of the Tyndall Centre for Climate Change Research. Or, we might take this blunt message, from an interview in November: “We need bottom-up and top-down action. We need change at all levels.” Uttering those words was Tyndall Centre senior research fellow and Manchester University reader Alice Bows-Larkin. Anderson and Bows-Larkin are world-leading specialists on the challenges of climate change mitigation.