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The clean energy R&#38;D strategy for 2°C / Giacomo Marangoni, Massimo Tavoni. Milan : Fondation Eni Enrico Mattei, 2013, 25 p. (Nota di lavoro ; 2013.093)http://www.feem.it/userfiles/attach/201311131121414NDL2013-093.pdfAuthors's abstract : This paper uses an integrated assessment model to quantify the climate R&#38;D investment strategy for a variety of scenarios fully consistent with 2°C. We estimate the total climate R&#38;D investment needs in approximately 1 USD Trillion cumulatively in the period 2010-2030, and 1.6 USD Trillions in the period 2030-2050. Most of the R&#38;D would be carried out in industrialized countries initially, but would be evenly split after 2030. We also assess a ‘climate R&#38;D deal’ in which countries cooperate on innovation in the short term, and find that an R&#38;D agreement slightly underperforms a climate policy based on the extension of the Copenhagen pledges till 2030. Both policies are inferior to full cooperation on mitigation starting in 2020.  A global agreement on clean energy innovation beyond 2030 without sufficiently stringent GHG emissions reduction policies is found to be incompatible with 2°C.