How to reduce emissions of greenhouse gas emissions by 80% by 2050?

Disruption of the water cycle, rising sea levels, species extinction, extreme weather events as well as epidemics or economic downturns could be ultimately the consequences of global warming. To contribute to international debate on a low-carbon economy in 2050, Nathalie Kosciusko-Morizet launched 27 June 2011 a task force to identify the best scenarios for reducing greenhouse gas emissions in France.

Towards a low-carbon economy 
"Paths 2020-2050 - Towards a low-carbon economy", is a committee chaired by Christian de Perthuis, professor of economics at the University of Paris-Dauphine and expert economic climate, and supported by the Centre for Strategic Analysis (CAS). It brings together some forty participants.
It will analyze in October 2011 by the possible scenarios, taking into account all economic, social, health and environmental. His work will help guide strategies for emission reductions and long-term investment at the national level, and to clarify the French position on raising the ambition in 2020.
 The economic crisis should not blind us to the urgent issue of climate. Maturities 2020 and 2050 may seem distant, but are preparing today. To develop a roadmap will enable stakeholders to anticipate the transition of our economy and make it an opportunity for growth and employment  , "said Nathalie Kosciusko-Morizet.
The objectives of the international community ....
The international community has set a goal to Cancun to limit the rise in average temperature below 2 ° C compared to preindustrial times. According to the evaluations of the Intergovernmental Panel on Climate Change (IPCC) this goal requires a halving of global greenhouse gas emissions by 2050 and a reduction of at least 80% by 2050 for OECD countries.
In a situation of economic crisis and on the eve of the Durban Conference, the roadmap to achieve this goal in 2050 is the subject of intense debate. While the European Union adopted in 2008 under the French Presidency measures enabling it to reduce its emissions by 20% in 2020, the European Commission now estimates that the scenario most effective in achieving the goal would be a 25 % in 2020, 40% in 2030 and 60% in 2040.
Give rise to heated debates
Because of the Polish opposition to any new commitments, the discussion could not advance to the European Council of June 21 France, meanwhile, has not yet officially positioned on the question of raising the commitment in 2020. In fact the acceleration of the transition to a low-carbon economy must be considered in the alder a national debate on the best path depth to reach the target in 2050. On what basis to share the effort between different sectors of the economy? What would be the impact on business competitiveness and the job market? How to evaluate the investment required to raise our ambitions and the means of financing? What are the instruments to implement climate ambition to reconcile the economic efficiency and social?


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