Any one tell me the themes related to environment and energy..?

Question

we are going to conduct state level symposium ECOFEST in our college if anyone could suggest a creative theme...

Answer 1

How about Evergreen  (Or  Evergreen Ecosystems)? You could have an "E" theme - energy efficiency, evergreen, ecosystem survival, etc.  People need to be aware of energy conservation  in the here and now as well as in future building projects - a good resource is http://www.building-your-green-home.com/...  

I hope it goes well for you!