Emissions-producing diesel trucks and cars pass non-polluting windmills along the 10 freeway on December 8, 2009 near Banning, California. Sustained global warming shows no sign of letting up according to new analysis by the World Meteorological Organization made public at the climate talks in Copenhagen. Although global temperature fluctuates from year to year, overall the decade of the 2000s is likely the warmest decade in the past 150 years covered by the report. This decade is warmer than the 1990s which were warmer than the 1980s, and so on. The conclusion meshes with independent analysis by the National Climatic Data Center and NASA.