On the contrary, they don't lack credibility. I've already quoted the FAA Center of Excellence report, which states that the aviation biofuel industry will grow. I've also quoted a extensive review of the entire biofuel industry by 137 bioenergy professionals who basically state the same. You state the opposite. You don't like cut and paste because the statements quoted conflict with your prejudice. You admit that you are a petroleum chemist (page 6 of this thread) so it is understandable that you find biofuels a threat to your industry and hence would attack it.
The report finds that land availability is not a limiting factor. Bioenergy can contribute to sustainable energy supplies even with increasing food demands, preservation of forests, protected lands, and rising urbanization. While it is projected that 50 to 200 million hectares would be needed to provide 10 to 20% of primary energy supply in 2050, available land that does not compromise the uses above is estimated to be at least 500 million hectares and possibly 900 million hectares if pasture intensification or water-scarce, marginal and degraded land is considered.
Here is a recent update on the production of ethanol by Lanzatech in Europe, which illustrates my point of a growing industry.
Belgian Steel Plant: We'll Make 50,000 Tons Of Ethanol From ByproductEven as world governments continue to encourage the production of biofuels, ethanol remains subject to particular criticism.
The highest-volume feedstocks for ethanol are still plants like corn or sugar cane, which take up farmland that in some cases could otherwise be used for food.
Which is why two companies have paired up to try to make large quantities of ethanol in a very different way.
ArcelorMittal--the world's largest steelmaker--plans to collaborate with a small New Zealand company called LanzaTech on a system that can turn carbon monoxide into ethanol.
The key is a microbe found in a rabbit's gut that can complete the seemingly unlikely transformation, according to the Financial Times (subscription required).
This system will be installed at ArcelorMittal's plant in Ghent, Belgium, later this year, at an estimated cost of 87 million euros ($96 million).
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