We learn that the impact of farming on greenhouse-gas levels, thousands of years before the industrial revolution, kept our planet notably warmer than if natural climate cycles had prevailed--quite possibly forestalling a new ice age.Plows, Plagues, and Petroleum is the first book to trace the full historical sweep of human interaction with Earth's climate. Ruddiman takes us through three broad stages of human history: when nature was in control; when humans began to take control, discovering agriculture and affecting climate through carbon dioxide and methane emissions; and, finally, the more recent human impact on climate change. Along the way he raises the fascinating possibility that plagues, by depleting human populations, also affected reforestation and thus climate--as suggested by dips in greenhouse gases when major pandemics have occurred. The book concludes by looking to the future and critiquing the impact of special interest money on the global warming debate.Eminently readable and far-reaching in argument, Plows, Plagues, and Petroleum shows us that even as civilization developed, we were already changing the climate in which we lived.

    Making use of remarkable scientific discoveries that transform our understanding of how natural systems work, George Monbiot explores a new, positive environmentalism that shows how damaged ecosystems on land and at sea can be restored, and how this restoration can revitalize and enrich our lives. Challenging what he calls his “ecological boredom,” Monbiot weaves together a beautiful and riveting tale of wild places, wildlife, and wild people. Roaming the hills of Britain and the forests of Europe, kayaking off the coast of Wales with dolphins and seabirds, he seeks out the places that still possess something of the untamed spirit he would like to resurrect.He meets people trying to restore lost forests and bring back missing species—such as wolves, lynx, wolverines, wild boar, and gray whales—and explores astonishing evidence that certain species, not just humans, have the power to shape the physical landscape. This process of rewilding, Monbiot argues, offers an alternative to a silent spring: the chance of a raucous summer in which ecological processes resume and humans draw closer to the natural world.