The price of world crude oil

The price of world crude oil declined sharply, under the U $ 44 D. Do we do not continue to alternative energy again? I do not .. because if we only use crude oil as a source of energy the next 50 years will occur missing / out of this crude oil.
Why can out ... because we can not update again. Only one solution that is still consistent in the implementation of the development of alternative energy. Castor oil is energy that is possible to be developed. Due to processing equipment that is expensive and rarely have made it difficult to develop.
Need attention from the local government to run the ideas that are good and more efficient