Value of biofuels in doubt

While biofuels may offer marvelous financial benefits versus using fuel derived from petroleum, it looks like the nitrous oxide output of engines burning biofuel derived from rapeseed or corn (maize) may be greater than that of engines burning traditional petroleum-derived fuels. One wonders if catalytic converters could be modified to account for increased nitrous oxide output.

Jatropha: biofuel weed?

Jatropha is showing promise as a potential source for biofuel. Its seeds have a high oil content, and it can grow in less-than-favorable conditions not hospitable to other favored biofuel crops.

Spaceport America to use renewable energy

Spaceport America will reportedly be making extensive use of photovoltaic solar collectors for power and a passive heating/cooling system. If a development of that size can (and will) use existing green energy technology to supply all of its power then surely other future developments will provide a fertile market for cost-effective renewable energy solutions.