Sydney, Tokyo and Buenos Aires are in for some of the biggest sea-level rises by 2100, finds one of the most comprehensive predictions to date.
As pollution levels return to normal in China's capital after a record-breaking month of smog, what can be done to banish the smog?
The surge of ice loss from Greenland between 2005 and 2010, which drove up sea levels around the world, was not unprecedented. A similar spurt happened in the late 1980s, and possibly decades earlier as well.
War and unrest, and the collapse of many mighty empires, often followed changes in local climes. Is this more than a coincidence?
