All Videos Tagged Optimism (Africa Sustainable Energy & Environment Platform) - Africa Sustainable Energy & Environment Platform 2019-06-24T19:20:53Z http://sustainableenergyinafrica.ning.com/video/video/listTagged?tag=Optimism&rss=yes&xn_auth=no Larry Brilliant on TED Talks tag:sustainableenergyinafrica.ning.com,2011-06-24:2159433:Video:31389 2011-06-24T14:27:15.496Z Chanelle c Rudder http://sustainableenergyinafrica.ning.com/profile/ChanellecRudder Optimism about Global Warming & raising hard Facts Optimism about Global Warming & raising hard Facts