Agence France-Presse: US President Barack Obama should do more to push for a US climate deal, Rajendra Pachauri, the head of the Nobel Peace Prize winning Intergovernmental Panel on Climate Change, said Thursday. “I personally feel he ought to be doing a lot more,” Pachauri told reporters after a debate on climate change in Stockholm, adding the president “really has to assert himself to see that the US passes legislation” prior to the Copenhagen summit. The high-stakes conference in the Danish …