A World of Biofuel (and then some)
I haven't corroborated elsewhere, but Schafer's table below suggests that replacing crude oil with biofuel would require growing biofuel crops on 5X the world's arable farmland. Even if 100% of the world's farmland was devoted to biofuels, that would only replace 20% of our crude oil consumption.
Those numbers still suggest a sizeable biofuel opportunity, but it's not the answer for fossil fuel reliance -- especially with Chindia ramping up their consumption.
Schafer provides another table that piqued my curiosity on biofuel crops. What's the deal with Oil Palms? Wherease Corn can deliver 196 barrels of biofuel per square mile of crop, and Coconut (the second highest producer) can deliver a whopping 3,131 barrels/sqm, Oil Palms can deliver 6,927 barrels/sqm -- more than 30X that of Corn. With that level of production we'd at least have a shot at replacing crude oil prior to colonizing other planets...
Comments (1)
I think targeting biofuels as a solution to importing oil is a nice marketing gimmick, but there are some significant benefits beyond reducing dependence on foreign oil:
- Corn stover, straw, woody weeds, and other farm wastes are often burned because there's nothing else to do with them. Turning them into biofuels can improve rural economies and reduce carbon dioxide and other emissions
- Marginal fields, in addition to farmland, can be used to grow feedstocks for biofuel. This, once again, can improve rural economies and also means that one doesn't have to decide between growing food and growing fuel
- Something's got to be done with all that subsidized corn.
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