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13th July 2008 Ghost
Gas
Michael Prather, of the University of California, has warned of
the rising emissions of the powerful greenhouse gas nitrogen trifluoride.
The gas is used in manufacturing semiconductors.
17th September 2007 Cloud
Albedo
Veerabhadran Ramanathan and colleagues at the Scripps Institute
in California have found that the brown clouds arising from air
pollution can be an important driver of atmospheric warming.
10th November 2003 Shipping
News
James Corbett, from the University of Delaware, US, has highlighted
the extent of NOx gas emissions from shipping. He reports that the
world's trawlers and tankers emit more NOx than from the whole USA.
17th June 2003 Ozone
H-bomb
Yuk Yung and colleagues in the US have warned that future increases
in hydrogen emissions, arising from its wider use in the batlle
against global warming, may create larger and longer-lasting ozone
holes.
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