I found answer to solve world's problems.

At last I have found the key answer to the world's environmental problems. It is to re-invent agriculture so that the land based food system becomes based on tree crops such as baobab trees and vegan-organic agroforestry rather than ground level seed and grain crops.

 

I think you will have to evolve that idea a little further, but it's a good start and I wish you all the best. Good luck!