The Wall Street Green Trading Summit
01 April 2009 - 02 April 2009
New York, USA
http://www.wsgts.com
15th Group Exhibit Hydrogen + Fuel Cells (at Hannover Messe 2009)
20 April 2009 - 24 April 2009
Hannover, Germany
http://www.fair-pr.com/
Engineered Geothermal Energy, the UK's Buried Treasure: The Current Status of the Economics and Technology to Exploit it
21 April 2009
London, UK
http://www.geolsoc.org.uk
Implementation of Renewable Energy in the Emerging Markets of Africa, Latin America, and the Caribbean
27 April 2009 - 29 April 2009
San Francisco, California, USA
http://www.reem09.net/