What is the Graph on top all about ???

Well, to put it in one line ... It's all about how you, I and others across the world are facing hotter summers / winters .

Description: Global temperature. Axes are not labelled in order to keep the diagram language neutral; x-axis: year (1900–2004), 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.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.

Source: graph drawn by Hanno using data published on the web by P.D. Jones, D.E. Parker, T.J. Osborn & K.R. Briffa (2005) as "Global and hemispheric temperature anomalies – land and marine instrumental records". In Trends: A Compendium of Data on Global Change. Carbon Dioxide Information Analysis Center, Oak Ridge National Laboratory, U.S. Department of Energy, Oak Ridge, Tenn., U.S.A. [http://cdiac.esd.ornl.gov/trends/temp/jonescru/jones.html]

Licence: released into the public domain by the author