Global Carbon Project
(published June 2014)
Full Global Carbon Budget
The Global Carbon Budget is a collaborative effort of the global carbon cycle science community coordinated by the Global Carbon Project. The 2013 global carbon budget paper (doi:10.5194/essd-6-235-2014) was published in June 2014.
The global carbon budget refers to the mean, variations, and trends in the anthropogenic perturbation of CO2 in the atmosphere, referenced to the beginning of the industrial era. It quantifies the input of CO2 to the atmosphere by emissions from human activities, the growth of CO2 in the atmosphere, and the resulting changes in land and ocean carbon fluxes in response to increasing atmospheric CO2 levels, climate change and climate variability, and other anthropogenic and natural changes. An understanding of this perturbation budget over time and the underlying variability and trends of the natural carbon cycle are necessary to understand and quantify climate-carbon feedbacks.