I hope that goes well for them.
Judging by the picture alone things can surely only get better. This is one of those classic cases of a tipping point needing to be reached before an "experimental" solution can be actioned.
Hopefully the solution is actually beneficial and not some "not plastic but still not good" alternative. In Vancouver they banned single use plastic bags for things like food takeout, and instead places now use small fabric bags. Yes they aren't single-use plastic, so they're better, but they might as well still be single-use.
If it's polyester, then its a single use plastic bag in all but de jure.
Discussion of climate, how it is changing, activism around that, the politics, and the energy systems change we need in order to stabilize things.
As a starting point, the burning of fossil fuels, and to a lesser extent deforestation and release of methane are responsible for the warming in recent decades:
How much each change to the atmosphere has warmed the world:
Recommended actions to cut greenhouse gas emissions in the near future:
Anti-science, inactivism, and unsupported conspiracy theories are not ok here.