ECOMONDO :  "11th International Trade Fair of Material & Energy Recovery and Sustainable Development" 7 - 10 November 2007, Rimini, Italy (link ).

Arab Corporate environmental Responsibility Summit  ,  29 November 2007, Organized by Arab Forum for Environment and Development (AFED), UAE, Abu Dhabi  (link ).

17th World Hydrogen Energy Conference :Supplying Energy To A Changing World" June 15-19, Brisbane, Australia (link) 

Energex Vienna 2008 :Energy for Human Develop- -ment and the Protection of the Environment – Policy, Economy and Technology" – 06 –12 July, 2008, Vienna - Austria (link) 

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World Renewable Energy Congress X:July 19-25, Glasgow, Scotland, UK (link )