[Wonder Warthog]

"Getting 10 million gallons of oil per square mile per year is hardly going to make any difference unless one thinks that a thousand square miles of land will be devoted to algae growing in the near future."

Not impossible or improbable at all. A thousand square miles is really quite a small area. Given what the US did during World War II in expanding production, all that is lacking is focused political will.

[count-your-change]

And at $10-$20 per gallon of algae oil I can see that petroleum is doomed. But with volume the price might drop to......? Only three times the cost of petroleum? Twice petroleum? Wonderful hype, terrible economics.