In the United States, you will find that different cities have different regulations on garbage recycling. But it can be roughly divided into three categories.
The first category: the most common two-color trash can in America (the blue one is recyclable garbage). It has become a necessity in American residential areas. You can often see it in public places or offices. What it can recycle is often some metal glass, milk bottles and the like.
The second category: green recyclable trash can, mainly recycled paper, such as newspapers, magazines, books, envelopes, shoe boxes, clean pizza boxes, etc., should be thrown into this trash can.
The third category: black omnivorous trash can. The so-called omnivorous food is popular, that is, put some non-recyclable garbage that has not entered the green and blue trash can, which is the real non-recyclable trash can. That is, things that have been called garbage and have no use value, such as peels, some white plastics, disposable things and so on.
Compared with our country, Americans should do better in environmental protection in terms of system and concept, but for the United States, how to recycle garbage is still an unsolved problem.
For our country, although we have a strong awareness of environmental protection in recent years, we have not seen how well we have done it. Garbage classification has been stuck in words, without substantive actions. In this regard, we still need to learn from the United States. At least the garbage classification must be perfect before we can consider the problem of garbage recycling and strive to surpass the United States in this respect.