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SUMMARY:Interpreting recent changes in atmospheric methane using satellite
  observations of gravity - Professor Paul Palmer\, School of GeoSciences\,
  University of Edinburgh
DTSTART:20091118T141500Z
DTEND:20091118T151500Z
UID:TALK19673@talks.cam.ac.uk
CONTACT:Dr Francis Pope
DESCRIPTION:The atmospheric growth rate of methane\, determined by a balan
 ce between natural and anthropogenic sources and sinks\, levelled off late
  in the 20th century but has recently started to increase. Our understandi
 ng of these changes in growth rate is poor\, hampered by incomplete knowle
 dge of sources and sinks and by sparse in situ data coverage. I will outli
 ne a new approach to isolate methane contributions from wetlands\, the lar
 gest single methane source that represents 20-40% of the total emissions b
 udget\, using an innovative combination of space-based data. I will discus
 s the implications of our results for understanding recent changes in atmo
 spheric methane. 
LOCATION:Unilever Lecture Theatre\, Department of Chemistry
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