HOW TO COOL THE PLANET
Right now, a group of scientists is working on ways to minimize the catastrophic impact of global warming. But they're not designing hybrids or fuel cells or wind turbines. They're trying to lower the temperature of the entire planet. And they're doing it with huge contraptions that suck CO2 from the air, machines that brighten clouds and deflect sunlight away from the earth, even artificial volcanoes that spray heat-reflecting particles into the atmosphere. This is the radical and controversial world of geoengineering, which only five years ago was considered to be fringe. But as Jeff Goodell points out, the economic crisis, combined with global political realities, is making these ideas look sane, even inspired.