The problem with Susan Scott's climate change report is that it is a policy document for the EU's 2012 - 2020 climate plan. This is an extremely stringent plan and may not be the best way forward.
At an EU conference in Valencia in 2007 (which for the life of me I cannot locate the powerpoint link) the key impacts on human welfare from global warming were set out. These were an increase in the population at risk of Malaria of 300 million, of hunger - 200 million, coastal flooding - 100 million and water stress a staggering 3 billion. All to occur with 3C of warming or in roughly 2100
The figure for water stress is from the Stern Review. The IPCC's 2007 report actually reports that there will be
fewer people at risk than today because of an expected increase in the hydrological cycle. A point, it should be added, that is made implicilty.
Indur Goklany, a research analyst with the US's Cato Institute makes the following cogent argument. Using official UN figures, the total population at risk (TPAR) from Malaria in 2085 is projected to be 8.3 billion. Global warming would therefor contribute to just 3.5% of the total. The Kyoto protocal will cost $165bn per year and if held constant would only reduce temps by 7% in 2085. So for $165bn/year we could reduce the TPAR of Malaria by 0.2%. The EU 2020 plan is estimated to cost €60bn/year for the EU alone and will make no discernable increase in temperature reduction over Kyoto. (Lomborg 2008)
According to the UN Millenium Development project, for just $3bn/year we could reduce the total burden of Malaria in the world by 75% through focused adaptation measures and direct development aid. For example, providing bed nets, improved healthcare and education provisions and improving nutrition. All of these would lead to the elimination of Malaria because the disease is basically one of poverty. This is also a no regret policy.
This argument applies just as effectively to the other three global impacts mentioned above. More details below.
http://www.cato.org/pubs/pas/pa-609.pdf
If the EU truly wants to leave future generations with more welfare and a greater stock of resources to have at their disposal then this is better served by focused adaptation rather than mitigation. To put this into another perspective, if the EU plan is based on the Stern review then the cost of the plan to 2050 would be $38trillion. The total estimated cost of global warming this century is $23 trillion. (Nordhaus 2008 and below)
Has Nordhaus Demonstrated We Better Do Nothing About CO2 emissions? The Unbearable Nakedness of CLIMATE CHANGE