限塑令国外也有，效果似乎不错，超市中塑料袋使用率有了显著下降

“The Plastic bag ban has certainly changed consumer behaviour with 84% of primary shoppers reportedly now taking re-usable bags to the supermarket, a significant increase from 44%.”

然而，还有另一面，垃圾袋的购买量增加了

“the initial research indicates that additional bin liner sales actually increased by around 31% after the (Plastic Shopping Bags) ban”

有意思的发现，环保措施要考虑全面。文章给出的建议是使用可降解的环保垃圾袋。还有其他的类似案例吗？

http://www.sustainabilitymatters.net.au/case_studies/59294-The-case-for-compostable-bags-being-used-for-food-recycling