* 2007 In preparation for the 33rd G8 summit, the national science academies of the G8 + 5 nations issued a declaration referencing the position of the 2005 joint science academies ' statement, and acknowledging the confirmation of their previous conclusion by recent research.

* 2007 In preparation for the 33rd G8 summit, the Network of African Science Academies submitted a joint “ statement on sustainability, energy efficiency, and climate change ”:

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