g8 addressing energy security and climate change eesi briefing 30 june 2005 foreign & commonwealth office christian turner 1st secretary environment british embassy washington fco gov uk 1 necessary 2 global temperatures 1861 2003 3 models observations show recent temperature increase due to human greenhouse gas influence hc 4 co2 levels are already unprecedented in the last 800 000 years co concentration ice core samples projections for next 100 150 200 250 300 350 400 450 500 550 600 650 700 before present vostok record ipcc is92a scenario law dome mauna loa current 2001 projected 2100 0100 000200 000300 000400 ncentration p pmv 5 impact on impacts of extreme weather events subsidence costs hot summers 1997 billion insured flood damage 750 million 2080 no stabilisation summer winter up 80cm sea level rise more rain 60 less 6 who needs take action reduce emissions 7 importance us per capita 1998 678 9 8 context is currently a
