EnvironmentGeoengineering is now essential to saving the Arctic's ice If we want to preserve the dwindling ice in the Arctic, cutting our emissions is no longer enough – we also need to use geoengineering to refreeze this precious ecosystem Leader
EnvironmentMost cities are rainier than their surroundings due to heat and smog A global survey of more than a thousand cities shows heat and air pollution in urban environments often have a measurable influence on rainfall, creating urban "wet islands" News