Compost test of EnviPlast biodegradable plastic shopping bag

This is a test of manufacturer claims of bio-decomposition. I tested the decomposition in a common garden compost pile. I placed three bags side-by-side. A brown paper grocery bag -- I know the bag will decompose in a few months. A plastic one-use disposable bag from a market -- I know the bag will not decompose in soil. The bag will fragment after months of sunlight ( UV ) exposure, yet the fragments will remain plastic pollution for a thousand years. And the biopolymer bag. In the videos uploaded