Слайд 2 We always ask a question when it comes time to decide
what to take with you to the store: paper or plastic bag?
Слайд 3 On the one hand it’s a simple choice, but lets think
about these two different things. Each has its advantages and disadvantages . Let's look at what they differ.
Слайд 4Paper bags
Paper comes from trees. It takes about three tons of wood
to get one ton of paper pulp.
Слайд 5Advantages
Paper bags take less time to decompose.
But paper bags for us, in
Russia, are not particularly common, such as in the United States. So that we cherish our forests.
Слайд 6Disadvantages
On the other hand, the paper bags have a number of
drawbacks. The main disadvantage of the paper due to the fact that it is afraid of water. Using lamination helps a little.
Слайд 7 Another and very significant drawback - the high cost of raw
materials and ways to improve it. If you take it to a recycling center it means more energy and chemicals are used.
Слайд 8According to the magazine “National Geographic”, in the manufacturing of paper bags
more energy, more water than in the production of plastic bags are used.
Слайд 9According Howstuffworks.com, papermaking pollutes air 70% more than the production of plastic
bags.
Слайд 10
Plastic bags
Plastic comes from oil. Everyone of us uses plastic bags in
our everyday life.
Слайд 11Advantages
Advantages of plastic bags are undeniable. They are cheap to produce, well
tolerate humidity, strong and durable.
Another advantage of the polyethylene to paper - the possibility of long-term use. Plastic bag, which served as a time, can be used for a long time.
Слайд 12Disadvantages
Plastic is a very useful material, which is very important in modern
life, but the problem is that it can lie on the ground or swim in the water for decades.
Слайд 13In fact, in the UK,for example,
they recycle only 1
in 200
plastic bags.
Слайд 14Besides , plastic bags cause over 100,000 sea turtles and other marine
animals to die every year, when animals mistake them for food.
Слайд 16 The best way to carry your shopping and protect the environment
at the same time is to choose a reusable fabric bag.
Слайд 18Some steps have been already made