Last Updated: Monday, April 8, 2013, 13:25
Researchers have for the first time shown a clear link between the speed at which corals grow, and pollution caused by human activity.
Last Updated: Wednesday, April 3, 2013, 15:12
Nearly 1.2 million people died in China due to air pollution in 2010, according to data presented at a summit in Beijing this week.
more videos >>
