In a joint press conference with President Obama today, Chinese President Xi Jinping announced a commitment put a price on carbon emissions. The plan is a cap and trade program which would effectively make china the world’s biggest carbon market. It is a key part of joint efforts by theUS and China to find cleaner ways to burn and use coal. Inside Energy’s Leigh

Paterson recently traveled to one of China’s main coal producing provinces, to see what the country is doing to clean up coal.