Observed and projected global mean surface temperatures from 1900, for three IPCC scenarios and the 'Year 2000 constant concentration' pathway

Figure Created 12 Jan 2011 Published 12 Jan 2011 Last modified 24 May 2017
If global greenhouse gas emissions would not be reduced, the 2°C target will be exceeded towards the middle of the 21st century. The horizontal 2°C target line takes into account warming of about 0.6 °C from pre-industrial to 1990. “Likely” ranges in average 2090-2099 warming for all six IPCC scenarios are shown on the right

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29 Nov 2010
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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: Intergovernmental Panel on Climate Change (IPCC).
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Intergovernmental Panel on Climate Change (IPCC)
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The figure is covering EU and the rest of the world. Temporal coverage for the projections: 1900 - 2100

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Understanding climate change — SOER 2010 thematic assessment Understanding climate change — SOER 2010 thematic assessment Average global air and ocean temperatures are rising, leading to the melting of snow and ice and rising global mean sea level. Ocean acidification results from higher CO2 concentrations. With unabated greenhouse gas emissions, climate change could lead to an increasing risk of irreversible shifts in the climate system with potentially serious consequences. Temperature rises of more than 1.5–2 °C above pre-industrial levels are likely to cause major societal and environmental disruptions in many regions. The atmospheric CO2 concentration needs to be stabilised at 350–400 parts per million (ppm) in order to have a 50 % chance of limiting global mean temperature increase to 2 °C above pre-industrial levels (according to the IPCC in 2007, and confirmed by later scientific insights).

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