Water vapour worse climate change villain than thought

A rise in water vapour in the atmosphere fuelled 30 per cent of the global warming that took place during the 1990s. This discovery suggests that the potent greenhouse gas plays a bigger role in climate change that we previously imagined.

Susan Solomon and colleagues at the US National Oceanic and Atmospheric Administration combined satellite measurements and weather balloon data to track changes in the concentration of water vapour 16 kilometres up in the stratosphere, between the 1980s and today.

http://www.newscientist.com/article/dn18457-water-vapour-worse-climate-change-villain-than-thought.html