EarthRun-off from Greenland may weaken carbon sink More fresh water than ever is draining into the Atlantic from Greenland, potentially changing how the ocean behaves ¿ìè¶ÌÊÓÆµ
EarthCan geoengineering avert climate chaos? From sunshades to algal blooms, there are plenty of ideas for cooling the planet. But are there hidden dangers? Stephen Battersby investigates Features