Reuters: President Barack Obama's new pledges on curbing carbon emissions drew a cautious welcome from the U.N. climate change chief on Thursday, but she said no country was doing enough and proposed the White House appoint an energy czar to coordinate reforms.
Obama revived his stalled climate change agenda on Tuesday, promising new rules to cut carbon emissions from U.S. power plants and moves to support renewable energy.
Christiana Figueres, head of the U.N. Climate Change Secretariat, said countries...