Save the Fish
Paper bag: how long does it take to break down in the sea?
Estimated time to break down in the sea: > 1 month. Source: Aquarium of the Bay (aquariumofthebay.org).
Paper bag: why is it harmful to the sea?
Breaks down fast; a soggy bag can still smother small animals for a while.
Paper bag: does it really disappear?
Yes, within weeks or months. Inks and coatings stay behind as a little pollution.
Paper bag: how harmful is it compared with other trash?
Harm score 1 out of 10: lasts 0/4, toxic 0/3, wildlife 1/3. It ranks 30 of 31 on our list. This score is our own simple scale for comparing items in the game. It is not an official index.
Paper bag: what is it made of?
Material: Paper. A typical one is about 28 cm long and weighs about 50 g.
Paper bag: what can I do?
Paper breaks down fast, but inks and wax still pollute: collect it for recycling.
Paper bag: what lasts longer, and what breaks down sooner?
Lasts longer: Cloth T-shirt, Newspaper, Milk carton. Breaks down sooner: Cardboard box.
Paper bag: where does this figure come from?
From “Marine Debris Prevention: decomposition key”, Aquarium of the Bay (San Francisco). Checked on 2026-10-15.
The source says“Paper bag 1 month”The source's limits (in English): Educational estimates 'in the marine environment'.