All petroleum is made up of algae (and other micro critters—sorry, not dinosaurs, despite what you may have heard) that’s been fossilized and compressed and heated over eons. Once sucked from the earth, petroleum is refined into, among other things, polyurethane (PU), the compound that makes up the foam used in the overwhelming majority of surfboards. PU is great for surfboards, terrible for the environment. But scientists have recently learned how to convert lab-grown algae oil into PU that’s far easier on the environment. Algae is grown in big ponds, harvested, then subjected to heat and pressure to cleave its macromolecules into monomers that…look, it’s chemistry, it’s really complicated. The point is, algae-oil production doesn’t create all the toxic byproducts and greenhouse gasses of its fossil-fuel cousins. Plus, the foam…
