Why Copenhagen doesn't matter: Rather than pinning our hopes on global solutions, anyone concerned about mitigating climate change should be hoping that the few big emitters decide to act now, regardless of what other countries decide to do. The Center for American Progress on myth vs. reality on international climate change negotiations. Planetary boundaries: Scientists propose guardrails for how far mankind can push the planet tomorrow, while others examine how far collapsed civilizations pushed it yesterday. Should we seek to save industrial civilisation? George Monbiot debates Paul Kingsnorth. A look at why green Catholics are not communists. From TNR, a review essay on the usefulness of cranks: Is environmentalism a natural ally of liberalism?; Earth to Obama: You can't negotiate with the planet; and what would Jesus drive? Republicans may think denying climate change is wrong, but at least it’s politically useful. To support the launch of the 10:10 climate change campaign to reduce carbon emissions, The Guardian asked artists, authors and poets to respond to the crisis. Call it eco-angst, the moment a new bit of unpleasant ecological information about some product or other plunges us into a moment (or more) of despair. A review of Eric Roston’s The Carbon Age: How Life’s Core Element Has Become Civilization’s Greatest Threat. A review of Green Metropolis: What the City Can Teach the Country About True Sustainability by David Owen (and more).