It may be a flash in the pan because
as is well known (I've been reading too much Alexander McCall Smith
lately) you can't keep growing a crop on soil after it's depleted.
And that is something overlooked by the Pollyannas who say we can
turn trees or any crop into IC energy. Some feel the ever-faster-
growing hybrids will do the trick. I don't think so. Just as virgin
forests (first cut) were bigger and better trees, so grains and
grasses extract minerals and micronutrients from the soil. If all
that is taken out by the plants is not replenished, then the harvest
diminishes. The only free input is sun and rain.