Could seaweed replace plastic packaging?

In Victorian London, among the factories and warehouses of the city’s East End, Alexander Parkes developed the world’s first plastic (he inventively called it Parkesine). Notpla, a startup now based in the same part of the city, wants to follow in his footsteps. Unlike Parkesine, however, its material is not made to last. And instead of fossil fuels, it is made from seaweed. At Emirates Stadium, not far away, football fans already gorge on hot dogs served on trays that use the material, which decomposes naturally in just six weeks.