China and the United States, which together produce around 45 percent of the world's carbon dioxide, have set ambitious greenhouse gas emission targets, with Beijing setting a goal for its emissions to peak "around 2030".<br /><br />Al Jazeera's Adrian Brown reports from Beijing.<br /><br />Subscribe to our channel http://bit.ly/AJSubscribe<br />Follow us on Twitter https://twitter.com/AJEnglish<br />Find us on Facebook <br />https://www.facebook.com/aljazeera<br />Check our website: http://www.aljazeera.com/
