This powerful book shows us that we are in deep denial about the magnitude of the global environmental challenges and resource constraints facing the world. Despite growing scientific consensus on major environmental threats as well as resource depletion, societies are largely continuing with business as usual, at best attempting to tinker at the margins of the problems. The authors argue that regardless of whether governments respond to the economic crisis through additional stimulus packages or reduced government spending, environmental and resource constraints will remain. The crisis will be exacerbated by the combination of climate change, ecosystem decline and resource scarcity, in particular crude oil. The concept of Planetary Boundaries is introduced as a powerful explanation of the limits of the biosphere to sustain continued conventional growth.