Four formerly developing countries took the reins during climate talks in Copenhagen: China, India, Brazil, and South Africa. It could herald a redistribution of global clout, some experts say.
The US, China, India, South Africa, and Brazil agreed to a voluntary climate pact. President Obama acknowledged that 'we have much further to go.' The deal did not produce commitments on emissions reductions.
As the Copenhagen global warming talks head into their final days, observers say many climate change issues are likely to be left unresolved.
The Copenhagen climate change talks kicked off on Monday. A Q&A on the key areas that will define success or failure.
At Tuesday's UN meeting, Presidents Obama and Hu set down markers for what they expect to achieve at the December climate change summit in Copenhagen.
In the post-Bush era, the major industrial nations meeting this week face pressure to set firm temperature and emission-reduction goals.
Barack Obama delivered a brief video message Wednesday to the Governors' Global Climate Summit in Beverly Hills, Calif., in which he unequivocally affirmed the scientific basis of climate change and vowed to take action on cutting carbon emissions, in spite of the troubled global economy.
July's storms bolster forecasts for a very active year.
The president says the level will stabilize by that year, but he sets no cap.