Mexico's 'green gold': The company powering cars with cactus juice
https://edition-m.cnn.com/2019/03/19/sport/cactus-power-car-formula-e-supercharged-vision-spt-intl/index.html?r=https%3A%2F%2Fedition.cnn.com%2F
Green fuel has been researched for a long time. I've heard that alga is an important resource for extracting oil. But, as far as I know, none of the technologies is used for mass-production.
I'm looking forward to seeing alternative substance for crude oil.