New Scientist: Almost all the technologies for geoengineering our way out of climate change fail a key test: they can’t stop the sea from rising and swamping low-lying countries. “You can’t slap the brakes on sea levels now,” says John Moore of Beijing Normal University in China. “There’s too much inertia in the system.” Moore and colleagues modelled the effects of deploying five different geoengineering techniques during the 21st century, and combined each one with three scenarios for …