“But there are some cons to consider. When biofuels first started to become competitive, there was concern that they were competing with food growers for agricultural land — an issue that’s become more salient as concern heightens over the planet’s rapidly growing population and the future of global food security. As a result, producers are increasingly focusing on fuel sources that can be grown on land that’s unsuitable for food crops.”

 

Life in and around the Earth’s surface is not all about humans.  It is bad enough that humans have eaten out most of our environment and are now destroying Earth’s organic structure but to exploit the few remaining places where other lifeforms can exist and plough them up to feed machines is insane.

 

https://www.washingtonpost.com/news/energy-environment/wp/2016/04/27/why-solar-powered-planes-are-still-a-long-way-from-carrying-passengers/