Пока я всё же склоняюсь к версии попила бабла на зелёной теме. Из
википедии:
Dozens of companies received hundreds of millions in venture capital from 2005 to 2012 to extract fuel oil from algae, some promising competitively priced fuel by 2012 and a production of 1 billion US gal (3.8 million m3) by 2012-2014. By 2017, nor were achieved and most companies had disappeared or changed their business plans to focus on cosmetics supplements, nutraceuticals, pet food additives, animal feed, pigments and speciality oils.
In 2019, 0.1% of fuel was SAF.