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| View Original: | Temperature1900-2004.png (1875x1146) | |||
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| Keywords: Temperature1900-2004.png Description Global temperature Axes are not labelled in order to keep the diagram language neutral; x-axis year 1900 2009 y-axis global temperature in °C The black line is the annual global mean The red line is the 10-year running mean The grey area is the 95 confidence interval of the same data calculated for the 50 years up to and including each year's measurement <br>The diagram illustrates several aspects of global warming the most obvious of which is the increase in mean temperature However also the confidence interval has increased both in value i e warmer climate and in width i e more variable temperature Periods of rapid change are characterised by many measurements falling outside the confidence intervals Two such periods can be identified the late 30's / early 40's and from the 80's to today Temperature increase in those periods is due to anthropogenous effects according to the IPCC Note The file name is not correct any more as the graph now ends in 2009 rather than 2004 The estimate for 2009 is based on preliminary values for the first 8 months of the year Source graph drawn by Hanno using data published on the web 2009 as HadCRUT3 Met Office Hadley Centre for Climate Change U K http //www cru uea ac uk/cru/data/temperature/ Licence released into the public domain by the author Global warming graphs graph | ||||
