47 Terawatts http://www.skepticalscience.com/heatflow.html http://www.skepticalscience.com/heatflow.html this post on skepticalscience http://www.skepticalscience.com/heatflow.html http://www.skepticalscience.com/heatflow.html 47 Terrawatts http://www.skepticalscience.com/heatflow.html http://www.skepticalscience.com/heatflow.html this post on skepticalscience http://www.skepticalscience.com/heatflow.html 47 Terawatts