The problem of "gas" is only a little part of a larger problem. Consumption is not "cool" anymore. Human predator is multiplying without bounds (exponentially) while nature and animals are disappearing exponentially. Natural resources are very limited. By stopping consumerism and stopping multiplying like rats you will only do yourself (and your children) a favor: you will stabilize YOUR environment. CONSUMPTION is not the answer to very limited world resources. "Alternative fuels" will make things only worse: more exponential growth of most vicious predator (human). If you are religious: "go forth (be fruitful) and multiply" was repealed by Jesus in the new testament just like many such Old Testament "orders/commandments" were repealed by him in new testament (eye for an eye, etc). Even Jesus showed to you that the truths (commandments) must be changed with changing times.