[gnomic]

Where to begin?

Bikes are not 100 polution free - think cradle to cradle - you still have to smelt the ore unless you are buiding a bamboo bike (yes, some guy is doing it! Google it)

We don't need to "generate" electricity. We need to efficiently capture the energy that it out there - solar is one option. How about capturing other particles like neutrinos? Or finding a new way to power things that doesn't use electrons? (Not a free energy freak, just want yo to think out side the box).

What we really have is a problem storing and delivering energy. Oil and gas are nothing more than a high density chemical battery, and very inefficient when you consider what it takes to get it from the ground to your engine - and then we throw away most of it as pollution.

There is no reason we can't get solar up to ~50pct (that whole day/night thing makes it harder to do more unless we move the panels to orbit, and then you have to beam the power down, etc.). The problem is storing that energy in a lightweight concentrated form that you can use for cars.

And if you bug is pollution - why not figure out how to capture it and convert it to something more useful? It still has lots of energy left...