Maybe I'm quoting the wrong part of the video but he suggests you need to use the re-usable heavy bag six times not hundreds of times to equalise the environmen

Maybe I'm quoting the wrong part of the video but he suggests you need to use the re-usable heavy bag six times not hundreds of times to equalise the environmental impact? This looks about right to me - he's comparing with the very heaviest re-usable plastic bags which I could imagine have at least 6 times the mass of the single use bags. I typically use the lighter re-usables plastic bags - unless I need to carry a lot of heavy stuff - which are maybe half the weight/thickness of the ones he uses for the comparison.