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Well, after the plastic bags get thrown away on the ground, they go into the ocean and kill a lot of animals. :(
Canvas bags should be used only if they are biodegradable and reusable. If they are to be thrown away it is not worth it.
You can buy regular shopping bags in Ireland. In some shops where bags are provided, there is a charge on them for the government if they are plastic bags. This is to encourage people to use their own bags or reuse other bags they have previously got. It encourages recycling and reduces the amount of bags in use and bags getting thrown away. Paper bags are provided for free.
Getting people to pay for carrier bags (which are usually made of lightweight plastic) is one of the ways being used to encourage people to bring their own bags and re-use them. Billions of plastic bags are thrown away every year. They take years to break down in landfill. They get washed out to sea where they kill sea creatures like turtles, which eat them thinking they are jellyfish.
Some things that can not be recycled are, Styrofoam, caps to plastic bottles, and pizza boxes. Plastic bags too, they just get thrown away.
They normally will not check your bags, but if they notice that have food or other disallowed items that are clearly visible, they'll forbid entry into the park until those things are removed, thrown away, etc.
Yes, and actually that is just the plastic shopping bags that get thrown away in there. There is more plastic than that.
According to "The Times" (see related link ) almost no animals are killed by plastic bags, and most plastic related deaths in marine birds and animals are more closely linked with other plastics which are dumped into the water system by industry.
Because the government of Canada wants to reduce the number of plastic bags that get thrown in landfills
According to the Green party website New Zealander use about 1 Billion plastic shoppng bags a year. According to plastics NZ we use 800 million. They are all thrown away of course in the end but most reused as rubbish bin liners so they are just replacing bags that would be bought anyway for this purpose.
Expendable products are ones intended to be used once, then thrown away. Many people think plastic bags are expendable, while many other people consider these bags reusable. Dental Floss is an expendable item.