Alternative Energy
in
The energy that has to replace the burning of fossil fuels, because we have no alternative, now that global warming is upon us.
Also referred to as clean energy, because it is untainted by petro-politics, and as renewable energy, because you never run out of it (and so never have to fight wars over it.)
Antonyms: coal-to-liquid fuels, tar sands.
Sometimes these are held up as "alternatives". They are not. They are alternatives only if you are interested in finding "alternative" fossil fuels that are worse than those we already use.
