The Carbon Cycle Greenhouse Gases (CCGG) research area operates the Global Greenhouse Gas Reference Network, measuring the atmospheric distribution and trends of the three main long-term drivers of climate change, carbon dioxide (CO2), methane (CH4), and nitrous oxide (N2O), as well as carbon monoxide (CO) which is an important indicator of air pollution.

CCGG is also active in the development of a global model called 'CarbonTracker', a measurement and modeling system developed to keep track of sources (emissions to the atmosphere) and sinks (removal from the atmosphere) of carbon dioxide around the world. A version of CarbonTracker for methane (CH4) has also been developed, as well as CarbonTracker-Lagrange (CT-L), a regional inverse modeling framework designed for estimating North American greenhouse gas emissions and uptake fluxes.

Estimated Global Daily CO2
October 26, 2020
413.33 ppm