The recycling bin sends plastic to be sorted, not to be recycled
Ask most people what happens to a yogurt tub after it goes into the recycling bin, and they will say it gets recycled. In most cases that is not what happens. The bin is only the first step. A truck takes everything to a sorting plant, where the plastic is separated by type and pressed into large bales. A bale becomes new material only if a recycler can use it and wants to buy it. Plastic rejected during sorting or processing ends up burned, buried or otherwise thrown away. Some is shipped abroad, which changes where it goes but does not show that it was recycled.
This is why the amount collected and the amount recycled are two different numbers. The OECD, a group of mostly wealthy countries that studies economic policy, looked at the world's plastic waste for 2019. Of 353 million tonnes, 55 million, or 15 percent, were collected for recycling. Of those, 22 million were thrown out again during processing because they could not be used. In the end about 33 million tonnes, or 9 percent of the world's plastic waste, was recycled. About 19 percent was burned, nearly half went to landfill, and 22 percent ended up in open dumps, was burned in the open or leaked into the environment.
That 9 percent is a share of all the plastic waste in the world. It is not the chance that one bottle in one bin gets recycled, but it shows how wide the gap between collecting and recycling can be.
Which plastic actually comes back as new plastic?
It depends on what the item is made of. Clear drink bottles (a plastic called PET) and milk jugs (a plastic called HDPE) are simple, and there are buyers for them. Tubs, trays, plastic film and packaging made of several plastics stuck together are accepted in some places and not in others. Whether they are recycled depends on the plastic, the shape, how clean the item is and where it was collected.
The United States shows the gap clearly. The latest full estimate from the US Environmental Protection Agency (EPA) is still for 2018, even though its web pages have been updated since. It covers plastic in household and business trash, which the EPA calls municipal solid waste, not every kind of plastic waste in the country. In 2018 that trash held about 35.7 million tons of plastic, and about 3 million tons, or 8.7 percent, was recycled. About 5.6 million tons were burned to produce energy, and about 27 million went to landfill. PET bottles and jars were recycled at 29.1 percent, and natural HDPE bottles such as milk jugs at 29.3 percent. That is more than three times the rate for plastic overall, and it still means most bottles were not recycled. The figures show the gap. They do not by themselves show what causes it.
The number inside the arrows tells you the type of plastic, not whether it gets recycled
Many plastic items carry a small number from 1 to 7 inside a triangle of arrows. Most people take it as a sign the item can be recycled. In fact it is a resin identification code : it only says which kind of plastic the item is made of. Number 1 is PET and number 2 is HDPE. Numbers 3 to 7 cover the other plastics, which are the ones that seldom find a buyer.
The code does not promise that anyone collects or recycles the item, and the standard itself says so. Because the arrows confused people, the group that writes the standard, ASTM International, replaced them with a plain solid triangle in a 2013 revision of its standard, D7611. The rule applies to new molds, and older molds do not have to be changed, so the old arrows are still printed on many products.
Where did the plastic nobody wanted end up?
For years, wealthy countries sent a large share of their sorted plastic abroad, mostly to China. According to a study in the journal Science Advances by researchers at the University of Georgia, China took in about 106 million metric tons of plastic waste after 1992. That was nearly half of all the plastic waste imported anywhere in the world.
In January 2018, under a policy called National Sword, China stopped accepting plastic waste from households. Strict limits on contamination followed in March 2018, and more kinds of waste were banned in stages through 2019. Mixed plastic from bins in other countries lost its largest destination. The same study projected that about 111 million metric tons of plastic waste would need a new destination by 2030. The bins stayed the same afterwards. Where the plastic went did not.
Why does Japan say 89 percent when the world average is 9?
Some countries report much higher numbers. Japan's Plastic Waste Management Institute, an industry group that publishes the country's main figures, says 89 percent of Japan's plastic waste was put to effective use in 2024. In rounded figures, that 89 percent breaks down as 20 percent made into new material, 3 percent broken down chemically and 67 percent burned to produce heat or power. Only about a fifth became new material. The institute also estimates that around 60 percent of the plastic counted as material recycling was exported, a figure it now calculates with a revised method and gives as a range.
South Korea counts in a similar way. According to ministry data submitted to the National Assembly and reported in September 2026 by the Korea JoongAng Daily, 65 percent of South Korea's plastic waste was counted as recycled in 2024. But only 26 percent was made into new material, 38 percent was burned for energy and 1 percent was broken down chemically. The government is reviewing whether to stop counting burning as recycling, which would bring its figures closer to how Europe and the United States count.
The United States counts burning for energy separately from recycling, and the European Union's figure leaves it out. Burning plastic for energy recovers some of its value as heat or power. But the plastic is gone afterwards. It is not what people expect when they put a bottle in the bin.
What does Europe's 42 percent measure?
In 2023 the European Union recycled 42.1 percent of its plastic packaging waste, according to Eurostat, the EU's statistics office. This figure covers packaging only, from businesses and government as well as households, not all plastic, and burning is not counted. Since 2020 the EU has measured recycling at the point where material enters the recycling process, rather than where it leaves a sorting plant. Eurostat says that change caused a decrease of 3.4 percent in recycling.
The way of counting matters. If you count at the bin, the number is high. If you count what goes into the recycler, it is lower. If you count only what becomes new material, it is lower still.
So what happens to the bottle you just threw in?
No national average can say what happens to one particular bottle. That depends on the local sorting plant and on whether anyone is buying that material at the time. What the numbers do show is a pattern that holds from year to year : plastic comes back as new plastic when someone will buy it, which mostly means clear bottles and milk jugs, and a high recycling rate can include plastic that was burned.
The rules are being argued over right now. California passed a law, SB 343, to keep the recycling symbol off packaging that is not actually recycled. On July 14, 2026, before it took effect, a federal judge issued a preliminary injunction stopping the state from enforcing it while the case continues. That is not a final ruling on the law. South Korea is reviewing how it counts. Countries negotiating a global treaty on plastics have not reached an agreement yet, and the next round of talks is proposed for March 2027.
Something you could tell a colleague : the recycling bin sends plastic to be sorted, and it becomes new plastic only if someone will buy it. When you hear a recycling rate, ask what was counted.
