Deposit return schemes reward people for bringing back empty drinks containers by refunding a small sum that was added when the drink was bought. Although such schemes involve some costs and inconvenience, I believe their advantages clearly outweigh their drawbacks.
The main benefit is that they give people a direct financial reason to return bottles and cans rather than throwing them away. Even a small deposit changes behaviour, because an empty bottle now has value. Containers left on beaches or in parks are often collected by others who want the refund, so litter falls noticeably. Furthermore, the material that is returned is clean and already separated by type, which makes it far easier and cheaper to recycle than mixed household waste. Plastic and aluminium can therefore be turned into new containers rather than being buried or burned, reducing the need for new raw materials.
There are, however, some disadvantages. Shops must find space for collection machines or storage areas, and staff time is needed to handle returned containers, which adds to running costs. Small corner shops, in particular, may struggle with these requirements. For customers, the scheme requires effort: they must store empty bottles at home and carry them back to a shop. Some may also object to paying a higher price at the till, especially if they rarely return their containers.
Nevertheless, these problems can be reduced through careful design. Governments can allow small shops to opt out or offer them financial support, and collection points can be placed at supermarkets that people visit regularly anyway. Overall, because deposit schemes reduce litter, improve recycling and encourage people to value resources, I consider their benefits to be far greater than their costs.