As the prospect of a warmer planet becomes reality, scientists are seeking ways to control the climate and keep the planet cooler. It’s a risky and highly controversial idea and, if successful, could imperil the ozone layer and lead to changes in rainfall patterns worldwide. It could also pit nations against one another as they try to control the weather or even use it as a weapon. "Whose hand would be on the thermostat?" a leading climate scientist at Rutgers University, Alan Robock, asked the House Committee on Science, Space and Technology in 2009. "What if Canada or Russia wanted the climate to be a little warmer, while tropical countries and small island states wanted it cooler?"
/ / / If the world had a giant thermostat, who would control the weather?