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CarbonTracker - CT2011
What is CarbonTracker?
A system to keep track of carbon dioxide uptake and release at the Earth's surface over time. [read more]
Who needs CarbonTracker?
Policy makers, industry, scientists, and the public need CarbonTracker information to make informed decisions to limit greenhouse gas levels in the atmosphere. [read more]
What does CarbonTracker tell us?
North America is a source of CO2 to the atmosphere. The natural uptake of CO2 that occurs mostly East of the Rocky Mountains removes only ~30% of the CO2 released by the use of fossil fuels. [read more]
What's new in this release of CarbonTracker?    NEW!
The 2011 release of CarbonTracker ("CT2011") uses multiple models to explicitly estimate the influence of first-guess fluxes ("priors") on our final result. It also includes observations and flux estimates through the end of 2010. [read more]
Other CarbonTrackers
2007 CarbonTracker PNAS publication

CarbonTracker CO2 weather for June-July, 2008. Warm colors show high atmospheric CO2 concentrations, and cool colors show low concentrations. As the summer growing season takes hold, photosynthesis by forests and crops draws concentrations of CO2 down, opposing the general increase from fossil fuel burning. The resulting high- and low-CO2 air masses are then moved around by weather systems to form the patterns shown here. [More on CO2 weather]

CarbonTracker is a NOAA contribution to the North American Carbon Program