It is estimated that fossil fuels will last no longer than the next 40 years, so I believe that it is imperative to the future that we find a viable alternative before that happens. This will include better research on ethanol, hydrogen fuel, natural gas, solar panels, wind and hydro power and new technologies altogether.
Renewable resources will help for the future. Because it will make fuel for us that we repeatedly make over and over again. And that will make our dependence on fossil fuels that much less. And our environment will be much cleaner. Then we will develop better ideas from the old ideas to do even better.