Plastic is the product, but the article emphasis is on the process. In a sustainability context, meaning the overall footprint to get the "same" product, it is

Plastic is the product, but the article emphasis is on the process. In a sustainability context, meaning the overall footprint to get the "same" product, it is low-carbon compared to fossil-fuel based processing. This may also be helpful: https://news.ycombinator.com/item?id=12495967 https://news.ycombinator.com/item?id=12495967