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Arctic summer sea-ice age 1981–2000 compared with 2007, 2008, and 2009
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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.
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Area of Greenland ice sheet melting 1979-2007
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Note: The maps show the area of the Greenland ice sheet with at least one day of surface melting in summer. The diagram 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.
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Area of multi-year Arctic sea ice in March 1957-2007
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Note: The area of thick, multi-year sea ice in the Arctic Ocean is decreasing
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Areas of possible establishment of Aedes albopictus (the tiger mosquito) in Europe for 2010 and 2030
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Developed by Francis Schaffner (BioSys Consultancy, Zurich), in partnership with Guy Hendrickx/Ernst-Jan Scholte (AviaGIS, Zoersel, Belgium) and Jolyon M Medlock (Health Protection Agency, United Kingdom) for the ECDC TigerMaps project
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Areas of possible establishment of Aedes albopictus (the tiger mosquito) in Europe for 2010 and 2030
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Developed by Francis Schaffner (BioSys Consultancy, Zurich), in partnership with Guy Hendrickx/Ernst-Jan Scholte (AviaGIS, Zoersel, Belgium) and Jolyon M Medlock (Health Protection Agency, United Kingdom) for the ECDC TigerMaps project
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Atmospheric concentration of Carbon Dioxide (ppm)
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The figure shows the global atmospheric concentration of carbon dioxide up to 2010. The value for 2011 is 390.9 ppm but is not included in the chart to ensure consistency with the other greenhouse gas figures.
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Atmospheric concentration of CH4 (ppb)
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The figure shows the atmospheric concentration of CH4
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Atmospheric concentration of CO2 (ppm)
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The figure shows the atmospheric concentration of CO2
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Atmospheric concentration of Methane (ppb)
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The figure shows the global atmospheric concentration of methane up to 2010.
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Atmospheric concentration of N2O (ppb)
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The concentrations of the individual GHGs under the Kyoto protocol have reached new highs in 2009
The figure shows the atmospheric concentration of N2O
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