Global Change Master Directory gsfc-gcmduso@mail.nasa.gov 50 2013-06-18T05:07:40Z GCMD Search: DataCenters|ACADEMIC|PDX/PHYSICS http://mddemo.gsfc.nasa.gov/KeywordSearch/OpenSearch.do 1 0 http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]OGI_CO_TRENDS Atmospheric Trends of Carbon Monoxide (CO) by Khalil and Rasmussen -180.0,-90.0,180.0,90.0 1979-07-01T00:00:00Z 1987-12-31T00:00:00Z 2010-07-07T04:00:00Z Carbon monoxide (CO) is a weak greenhouse gas but it is an important precursor to tropospheric ozone (O3) and other trace gases in the Earth's atmosphere, which can cause widespread changes ...