A BOLD NEW WAY OF UNDERSTANDING CLIMATE CHANGE: Much attention has been paid to the fossil fuels crisis and how it relates to climate change, but relatively little attention has been paid to our next great challenge: how to seriously curtail the amount of land we devote to growing our food. Agriculture generates a fourth of all greenhouse emissions and that number continues to compound as more nature--wetlands, forests, and savannas, among other types--is cleared to create unnecessary farmland.

A PRAGMATIST'S GUIDE TO THE ISSUE: We have to grow more food on less land to accommodate feeding a growing population. Grunwald is a ruthless pragmatist on this issue, and invites readers to be as well. We need to improve industrial farming, shift to growing more sustainable crops, equip farmers in the developing world with the latest Western technology, and rapidly invest in new solutions. The stakes couldn't be higher, as the global population continues to rise and every person on the planet deserves enough food to not just live on--but thrive on. (1