https://techcrunch.com/2024/04/27/climate-startup-valley-of-death/

Jonathan Strimling faced a dilemma. His company had spent nine years working on chemical processes that could turn old cardboard boxes into high-quality building insulation. The good news was the team had finally cracked it: CleanFiber’s technology pumped out insulation — really good insulation. It had fewer contaminants and produced less dust than other cellulose insulation made from old newspapers. Insulation installers loved the stuff.

Now CleanFiber had to make more of it. A lot more.