Since humans are responsible for changing the global climate, what lengths should we go to to mitigate the damage? A new study investigates one radical solution: ‘geoengineering,’ or reshaping the planet in a substantial way. In this case, by enlarging Antarctica’s continental glacier via pumping ocean water onto the ice surface. If it works, and the ice sheet grows thicker, it could sequester huge volumes of water and slow or halt the global trend toward…