We could do some household and neighborhood or town wind energy. But even this will run up eventually against the problem of needing an underlying fossil fuel economy to fabricate the hardware. Same with photovoltaic (solar) energy. We're going to be disappointed by what these things can do for us.
The "Green" community, the enviro people, are preoccupied with running all the cars differently. Our techno-grandiosity has us gibbering about high-speed rail - which we don't have the capital for anymore - but nobody is interested in repairing the existing rail system, which would be far less costly and hugely beneficial for us. In short, we are acting cluelessly. And life is tragic. The clueless usually suffer.
No amount or combination of alternative fuels is going to allow us to continue running what we're running, the way we're running it.
Suburbia is not going to run on biodiesel. The easy-motoring tourist industry is not going to run on biodiesel, wind power and solar fuel.
Government at all levels in the USA right now is engaged in a quixotic campaign to sustain the unsustainable. We're determined to run WalMart, Disney World, the Interstate Highways, suburbia, and an imperial military by other means than oil. We'll squander a lot of dwindling resources in the process.
