Data and maps

Antarctic temperature change and atmospheric carbon dioxide concentration (CO2) over the past 800 000 years: The record is derived from several ice cores from the Antarctic ice sheet, some more than 3 km long
Located in Data and maps › Maps and graphs
Arctic summer sea-ice age 1981–2000 compared with 2007, 2008, and 2009: These images compare ice age, a proxy for ice thickness, in 2007, 2008, 2009, and the 1981–2000 average. 2009 saw an increase in second-year ice over 2008. At the end of summer 2009, 32% of the ice cover was second-year ice and three-year and older ice were 19% of the total ice cover, the lowest in the satellite record.
Located in Data and maps › Maps and graphs
Cumulative specific net mass balance of selected glaciers from European glaciated regions, 1946–2008: Cumulative specific net mass balance of selected glaciers from European glaciated regions
Located in Data and maps › Maps and graphs
Glaciers (CLIM 007) - Assessment published Sep 2008: The vast majority of glaciers in the European glacial regions are in retreat. Since 1850, glaciers in the European Alps have lost approximately two thirds of their volume, with clear acceleration since the 1980s. Glacier retreat is projected to continue. A 3 o C increase in average summer air temperature could reduce the existing glacier cover of the European Alps by some 80 %. With continuing climate change nearly all the smaller glaciers and one third of the overall glacier area in Norway are projected to disappear by 2100. Glacier retreat has serious consequences for river flow. It affects freshwater supply, river navigation, irrigation and power generation. It could cause natural hazards and damage to infrastructure.
Located in Data and maps › Indicators › Glaciers
Measured and projected concentration of all greenhouse gases (left) and Kyoto greenhouse gases (right): Graphs show observed and projected green house gases. Projections are made using all main IPCC SRES scenarios
Located in Data and maps › Maps and graphs
Melting area 1979–2008 and mass change 2003–2009 of the Greenland ice sheet: Note: The maps on the left show the area of the Greenland ice sheet with at least one day of surface melting in summer. The diagram on the left shows the cumulated melt area, which is defined as the annual total sum of every daily ice sheet melt area. For example, if a particular area is melting on 20 days in a given year, it is counted 20 times.
Located in Data and maps › Maps and graphs
Mitigating climate change — key message 1: The EU emitted close to 5 billion tonnes (Gt) of CO2-equivalents in 2008. It contributes today around 12 % of annual global anthropogenic direct greenhouse gas emissions.
Located in The European environment – state and outlook 2010 › … › Mitigating climate change - SOER 2010 thematic assessment › Key messages
Modelled remains of the glacier cover in the European Alps for an increase in average summer air temperature of 1 to 5 oC: Modelled remains of the Alpine glacierisation (climatic accumulation area) according to an increase in summer air temperature of +1 to +5 °C. The total of 100% refers to the ice cover of the reference period (1971–90). The 100%-marks of the other lines refer to the fraction of glacierisation of the corresponding Alpine country. Reading example: A rise in summer air temperature of 3 °C would reduce the Alpine ice cover (red curve) to about 20% of the glacier cover of the reference period (1971–90). The corresponding glacier remains of Switzerland (blue, dashed line) amounts to about 30%, whereas in Austria (black, dashed line) only about 7% of the glacier cover of the reference period is left.
Located in Data and maps › Maps and graphs
Observed and projected Arctic September sea-ice extent, 1900–2100: Observed and projected Arctic September sea-ice extent
Located in Data and maps › Maps and graphs
Observed and projected change in sea level 1970–2008, relative to the sea level in 1990: The solid lines are based on observations smoothed to remove the effects of interannual variability (light lines connect data points). Data in most recent years are obtained via satellite based sensors. The envelope of IPCC (2001) projections is shown for comparison; this includes the broken lines as individual projections and the shading as the uncertainty around the projections.
Located in Data and maps › Maps and graphs