Our roadmap to the big mess can be downloaded… now.

The fourth IPCC report Synthesis shows in its 23 short pages – just 5,000 words – exactly why that is necessary.

Latest statistics and shocks still in store

* 11 of the past 12 years (1995-2006) rank among the 12 warmest years in instrumental records of global surface temperatures (since 1850)

* Global average sea level has risen since 1961 at an average rate of 1.8mm per year – but since 1993 at an average rate of 3.1mm

* Temperature changes will depend on how much CO2 is emitted, but different scenarios see the increase by 2100 ranging from 0.3C to 6.4C

* Up to 30 per cent of the world’s species are at increased risk of extinction after a 2C temperature rise

* Between 75 million and 250 million people in Africa could suffer water shortages by 2020; in Asia, heavily-populated « mega-deltas » are at greatly increased risk of flooding; tropical forest in eastern Amazonia will turn to savannah by mid-century

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