The industry is expected to grow to $9.7 billion worldwide by 2026, but it faces challenges, including high energy costs, technological limitations and the ability to scale.
Algae has big potential for biofuels, feedstock, and other carbon-cutting products, and the US Department of Energy agrees. But cultivating and harvesting it is still too expensive.
On a barren lava plateau in Iceland stands an entirely new kind of industrial facility that sucks carbon dioxide from the air and traps it in stone. So, is this part of the solution to climate change?
