Global Carbon Budget launch events 26 Sept 2008 Paris Washington D.C.September 26, 2008 at 1:35 am | Posted in Climate change, Environment, Global warming | Leave a comment
Tags: Atmospheric concentrations, Carbon budget, Carbon dioxide, Carbon emissions, Climate change, CO2, GHGs, Greenhouse gases
P.S. Sorry, as of Sunday the GCP website and most of the links below are inaccessible. Please try again later 😉
An annual update of the global carbon budget and trends will be launched simultaneously in France (2pm-7pm, Announcement, pdf 796Kb) and the USA (10am-12:30pm EST, Announcement, html) today.
Data Sources: Atmospheric CO2 concentration (Pieter Tans and Thomas Conway, NOAA/ESRL), Fossil fuel emissions (Gregg Marland, T.A. Boden, R.J. Andres, and J. Gregg, CDIAC), Emissions from land use change (Richard A. Houghton, FAO ), Ocean sink (Corinne Le Quéré).
Data Files: and a complete description of data sources and calculations is available from: http://lgmacweb.env.uea.ac.uk/lequere/co2/carbon_budget.htm .
Atmospheric CO2 growth
Annual mean growth rate of atmospheric CO2 was 2.2 ppm per year in 2007 (up from 1.8 ppm in 2006), and above the 2.0 ppm average for the period 2000-2007. The average annual mean growth rate for the previous 20 years was about 1.5 ppm per year. This increase brought the atmospheric CO2 concentration to 383 ppm in 2007, 37% above the concentration at the start of the industrial revolution (about 280 ppm in 1750). The present concentration is the highest during the last 650,000 years and probably during the last 20 million years. [ppm = parts per million].
Emissions from land use change
Emissions from fossil fuel and cement
Regional fossil fuel emissions
Carbon intensity of the economy
CO2 removal by natural sinks
Natural Ocean CO2 sinks
Natural Land CO2 sinks
Anthropogenic CO2 emissions have been growing about four times faster since 2000 than during the previous decade, and despite efforts to curb emissions in a number of countries which are signatories of the Kyoto Protocol. Emissions from the combustion of fossil fuel and land use change reached the mark of 10 billion tones of carbon in 2007. Natural CO2 sinks are growing, but more slowly than atmospheric CO2, which has been growing at 2 ppm per year since 2000. This is 33% faster than during the previous 20 years. All of these changes characterize a carbon cycle that is generating stronger climate forcing and sooner than expected.
Thanks to a contact who sent me Carbon Output Grew in 2007, Jeopardizing Global Warming Fight story on Bloomberg this morning.