"What we're hoping to do is see if the warming is feeding the warming, particularly in the Arctic," said Euan Nisbet, a specialist in methane emissions at the University of London.
"Our monitoring network is very, very limited. We feel more observation is needed." Such measurement could warn of possible climate tipping points, scientists said in papers published by Britain's science academy, the Royal Society.
http://news.yahoo.com/s/nm/20110417/sc_nm/us_climate_warning