>> charles ettinger from brookings institution. any of the panelists i would like to address this question, when worse out talking about large utilization of coal by 2050 by believe some of the panelists were talking about. this seems to fly into the face with the intergovernmental panel on climate change is sane, which is by 2050 we have to be on the true check or a downward. in what figures you think correctly, i think i heard by 2050 china with still be on an upward tree, even though in percentage terms that might be down in your total primary energy usage. and i wonder if i heard you correctly. i wonder how you got till the trajectory upwards with the conclusions of the appc. >> let me take at least a shot at that. first of all, what is going to matter as we move deeper into the 21st century is what elegies be used to burn the coal that we burn. china may well still be burning a great deal of: 2050. the question is how much of that coal will be burned in tech elegies that capture and sequestration of carbon dioxide. i think two

>> charles ettinger from brookings institution. any of the panelists i would like to address this question, when worse out talking about large utilization of coal by 2050 by believe some of the panelists were talking about. this seems to fly into the face with the intergovernmental panel on climate change is sane, which is by 2050 we have to be on the true check or a downward. in what figures you think correctly, i think i heard by 2050 china with still be on an upward tree, even though in percentage terms that might be down in your total primary energy usage. and i wonder if i heard you correctly. i wonder how you got till the trajectory upwards with the conclusions of the appc. >> let me take at least a shot at that. first of all, what is going to matter as we move deeper into the 21st century is what elegies be used to burn the coal that we burn. china may well still be burning a great deal of: 2050. the question is how much of that coal will be burned in tech elegies that capture and sequestration of carbon dioxide. i think two