bJournalist and bestselling author Kristin Ohlson makes an elegantly argued, passionate case for our great green hope--a way in which we can not only heal the land but also turn atmospheric carbon into beneficial soil carbon--and potentially reverse global warming.b pThousands of years of poor farming and ranching practices--and, especially, modern industrial agriculture--have led to the loss of up to 80 percent of carbon from the world's soils. That carbon is now floating in the atmosphere, and even if we stopped using fossil fuels today, it would continue warming the planet. pAs the granddaughter of farmers and the daughter of avid gardeners, Ohlson has long had an appreciation for the soil. A chance conversation with a local chef led her to the crossroads of science, farming, food, and environmentalism and the discovery of the only significant way to remove carbon dioxide from the air--an ecological approach that tends not only to plants and animals but also to the vast population o