The national science academies of the G8 nations and Brazil, China and India, three of the largest emitters of greenhouse gases in the developing world, signed a statement on June 7, 2005 on the global response to climate change.
The statement calls on world leaders, particularly those of the G8 countries, to acknowledge that the threat of climate change is clear and increasing, to address its causes, and to prepare for its consequences.
Links:
[1] http://nationalacademies.org/onpi/06072005.pdf