Barack Obama, the US president, has reached a non-binding agreement with four other nations on limiting future carbon emissions.
The accord has been angrily criticised by developing nations, who say that it is not enough to prevent environmental catastrophe due to global warming.
The US president will also have a tough time selling the climate agreement back home. With the country's economy sluggish and unemployment in double digits, energy companies say it isn't the time for new regulations.
As Sebastian Walker reports from Texas, those firms say tougher rules would cut into their bottom line and keep them from creating new jobs.
