The Planet Remade: How Geoengineering Could Change the WorldThe risks of global warming are real, and potentially vast. The difficulty of doing without fossil fuels is daunting, and possibly insurmountable. So there is an urgent need for new thinking on climate change. To meet that need, a small but increasingly influential group of scientists is exploring proposals for planned human intervention in the climate system. A stratospheric veil against the sun; the cultivation of photosynthetic plankton; a fleet of unmanned ships seeding clouds: these are the radical technologies of climate geoengineering. It is chilling to think of such power, and such scope for misadventure or malice, in humans hands. And yet we are now at the point where we have no choice but to take them very seriously indeed. |