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by sbanach 2518 days ago
LDPE (thicker, 'bag for life' etc) is about 4 times as bad, paper bags 3 times, vs HDPE (thin) bags assuming no reuse. The below UK gov study investigates impact of each (and other alternatives like cloth bags) and also considers reuse as bin liners, which significantly changes the numbers.

https://assets.publishing.service.gov.uk/government/uploads/...