In this urgent time World on the Edge" calls out the pivotal environmental issues & how to solve them now. We are in a race between political & natural tipping points. Can we close coal-fired power plants fast enough to save the Greenland ice sheet & avoid catastrophic sea level rise? Can we raise water productivity fast enough to halt the depletion of aquifers & avoid water-driven food shortages? & can we cope with peak water & peak oil at the same time? These are some of the issues Lester R. Brown skilfully distils in " World on the Edge". Bringing decades of research & analysis into play he provides the responses needed to reclaim our future."