Describe a law on environmental protection.

I'd like to talk about the rule that limits plastic bags in shops in China. It says shops cannot give customers very thin plastic bags for free, so people have to pay for one or bring their own. It was introduced in 2008, when the government wanted to reduce plastic waste. Before that, people often took several bags even for small things, and many were thrown away after one use. The rule works in a simple way. Shops charge a small amount for bags, and they are not allowed to use the thinnest type. For example, when I buy vegetables at a local market, I usually bring a reusable bag because I don't want to pay for another plastic one. People had different reactions at first. Some complained because they had to pay, but others thought it was a good idea. Now most people seem used to it, and many carry a bag with them. I think it's a good law because it makes people use fewer bags, even though it cannot stop all plastic waste.

Honestly, I'd say the environmental rule that comes to mind is China's restriction on plastic shopping bags. Since 2008, shops have been required to charge for plastic bags, and very thin bags are banned from being made or sold. The aim is to stop people treating a bag as something they can use once and throw away.

It was introduced in 2008, when plastic waste was becoming a visible problem. Before the rule, supermarkets and small shops handed out bags automatically, even if someone had bought only a few items. I remember leaving shops with several bags, most of which ended up in the rubbish.

The law works through a simple charge: if customers want a bag, they pay a small fee, while shops are not allowed to use the thinnest type. In practice, I usually keep a folded reusable bag in my backpack, so I rarely need to buy one. The fee isn't high, but it makes people pause before taking an extra bag.

At first, some shoppers were annoyed, especially when they had no bag with them and had to pay for something they used for just a few minutes. Others supported it because they could see how many bags were being wasted. These days, people seem more used to carrying their own bags, although the rule hasn't removed plastic packaging altogether.

I think it's a worthwhile law. If a small charge changes a daily habit across millions of shopping trips, it can cut unnecessary waste, even if it isn't a complete solution.