I **think** that nuclear fusion could be made clean, but don't know enough about the physics of that to be certain.

One of the potential problems with these gigantic plants is that they cost billions of dollars, so if someone screws up in the design or construction there is a strong desire to cover it up and to bribe the inspector. With billions at stake, a million-dollar bribe seems quite reasonable and very difficult to turn down. Perhaps I am just being silly.

Serveral things are working against efficiency improves in oil burning cars. It's not sexy like alternative fuel. People like to have more power under the hood than they need. People like their cars to be big and heavy.

Like factories, stores, homes, farms, etc.

And virtually every fuel source we have is polluting, except hydroelectric. If we could make an efficient solar panel, that would be great! But most of the stuff we have uses up more fuel to produce than its worth. Government subsidies keep them afloat.

But, no need for alternate fuel?????

Wayne is right!! We need a Space-Program level search for alternate fuels! Now is already too late.