The root cause is global warming. That Is why we must stop energy crisis and oil dependency. I am investing in energy stocks and mutual funds to help this problem.

Sources:
http://www.amfi.com/types/energy-mutual-funds
http://www.altenergystocks.com/archives/2008/07/clean_energy_mutual_funds_and_etfs_1.html

We need to find renewable alternative energies so that we can end the energy crises
http://www.futurecars.com/futurefuels/bioethanol.html