There are alternative aviation fuels on the horizon for turbine engines.
I believe P&W has already approved the fuel for use in the engines they manufacture and GE approval is due in the near future.
There are also many available solid extraction methods that are proven, however, they are not viable from a financial risk/return standpoint as of yet.

Our politicians talk a good game but are unwilling to provide the funds necessary to make the advances toward energy independence nor will they create incentives for corporations that may already have the resources and infrastructure available to make this a reality. As long as this issue can be manipulated as a political tool we will see no change in the status quo.

When there is financial incentive to pursue alternatives it will happen.
And we'll still be flying.

At least I hope so.