U2 and Bono's long-held commitment to "save the planet" has been questioned after it emerged they have a combined carbon footprint big enough to fly the band the distance from the Earth to Mars.

A map displaying all the mangroves grown around the world, they are all generally based around areas that are prone to tsunamis and storms. You can relate this to Tsunami Hyogo.

Australia's Senate has approved a controversial law on pollution, after years of bitter political wrangling.