http://www.eea.europa.eu These are the search results for the query, showing results 1 to 6. http://www.eea.europa.eu/data-and-maps/indicators/atmospheric-greenhouse-gas-concentrations/atmospheric-greenhouse-gas-concentrations-assessment-1?utm_source=EEASubscriptions&utm_medium=RSSFeeds&utm_campaign=Generic   The global average concentrations of various greenhouse gasses in the atmosphere reached their highest levels ever recorded, and continue increasing. The combustion of fossil fuels from human activities and land-use changes are largely responsible for this increase. The concentration in 2006 of the six greenhouse gases (GHG) included in the Kyoto Protocol has reached 433 ppm CO2 equivalent, which is an increase of 155 ppm compared to the pre-industrial level. Considering all GHGs (incl. ozone and various cooling aerosols), the concentration is 393 ppm CO2 equivalents, which is 115 ppm higher than in pre-industrial times. The concentration of CO2 - the most important greenhouse gas - has reached in 2006 a level of 381 ppm, showing an increase of 103 ppm compared to the pre-industrial level. Under the IPCC scenarios the overall concentration of the six Kyoto gasses is projected to increase up to 638-1360 ppm CO2 -equivalent by 2100, whereas the concentration of all GHGs may increase up to 608-1535 ppm CO2 -equivalent.  The global atmospheric GHG concentration of 450 ppm CO2-equivalent may be exceeded between 2015 and 2030. No publisher alec climate CSI assessment07 CSI013 2008-04-02T00:00:00+02:00 Indicator Assessment http://www.eea.europa.eu/data-and-maps/indicators/atmospheric-greenhouse-gas-concentrations/atmospheric-greenhouse-gas-concentrations-assessment?utm_source=EEASubscriptions&utm_medium=RSSFeeds&utm_campaign=Generic The atmospheric concentration of carbon dioxide (CO 2 ), the main greenhouse gas, has increased by 34 % compared with pre-industrial levels as a result of human activities, with an accelerated rise since 1950. Other greenhouse gas concentrations have also risen as a result of human activities. The present concentrations of CO 2 and CH 4 have not been exceeded during the past 420 000 years and the present N 2 O concentration during at least the past 1 000 years. IPCC (2001) baseline projections show that greenhouse gas concentrations are likely to exceed the level of 550 ppm CO 2 -equivalent in the next few decades (before 2050). No publisher alec climate CSI State and Outlook 2005 - Part B assessment04 CSI013 State and Outlook 2005 2005-10-06T00:00:00+02:00 Indicator Assessment http://www.eea.europa.eu/data-and-maps/figures/observed-and-projected-changed-in-the-overall-kyoto-gasses-fig-1a-and-all-greenhouse-gasses-expressed-in-co2-equivalents-ipcc-2007a-partly-based-on-ipcc-2001?utm_source=EEASubscriptions&utm_medium=RSSFeeds&utm_campaign=Generic There is no historical trend in figure 1a due to the unavailability of long-term data for aerosols and ozone No publisher alec EEA standard re-use policy: unless otherwise indicated, re-use of content on the EEA website for commercial or non-commercial purposes is permitted free of charge, provided that the source is acknowledged (http://www.eea.europa.eu/legal/copyright). Copyright holder: European Environment Agency (EEA). CSI assessment07 CSI013 climate 2002-01-01T04:48:00+01:00 EEAFigure http://www.eea.europa.eu/data-and-maps/figures/measured-and-projected-concentrations-of?utm_source=EEASubscriptions&utm_medium=RSSFeeds&utm_campaign=Generic No publisher alec EEA standard re-use policy: unless otherwise indicated, re-use of content on the EEA website for commercial or non-commercial purposes is permitted free of charge, provided that the source is acknowledged (http://www.eea.europa.eu/legal/copyright). Copyright holder: European Environment Agency (EEA). CSI assessment06 climate CSI013 2002-01-01T02:24:00+01:00 EEAFigure http://www.eea.europa.eu/data-and-maps/figures/measured-and-projected-concentrations-of-kyoto-greenhouse-gases?utm_source=EEASubscriptions&utm_medium=RSSFeeds&utm_campaign=Generic No publisher alec EEA standard re-use policy: unless otherwise indicated, re-use of content on the EEA website for commercial or non-commercial purposes is permitted free of charge, provided that the source is acknowledged (http://www.eea.europa.eu/legal/copyright). Copyright holder: European Environment Agency (EEA). CSI climate CSI013 State and Outlook 2005 assessment04 State and Outlook 2005 - Part B 2002-01-01T00:00:00+01:00 EEAFigure http://www.eea.europa.eu/data-and-maps/custom-lists/uncertainties?utm_source=EEASubscriptions&utm_medium=RSSFeeds&utm_campaign=Generic CSI Specifications, section on uncertainties No publisher peifer CSI021 CSI020 CSI009 CSI008 CSI025 CSI024 CSI027 CSI026 CSI003 CSI002 CSI001 CSI007 CSI006 CSI005 CSI004 CSI023 CSI022 CSI036 CSI037 CSI032 CSI033 CSI030 CSI031 CSI018 CSI019 CSI034 CSI035 CSI014 CSI015 CSI016 CSI017 CSI010 CSI011 CSI012 CSI013 CSI029 CSI028 None Collection - deprecated