Clamshell Blog

     Shopping bags, paper, or plastic? When every time we go to the supermarket shopping, perhaps we would ask ourselves this question. Paper bags and plastic bags because of the environmental impact of their advantages and disadvantages, and even some environmentalists are also puzzled by this simple choice. Experts say the raw material paper timber, plastic bags, raw materials are crude oil. Americans spend each year for the production of shopping bags, manufacturers need to run out 14 million trees, or 12 million barrels of oil. Air pollution caused by production of paper bags, 70 percent higher than the production of plastic bags.

        However, plastic bags, once produced it is difficult natural degradation, they can exist for centuries, even millennia. Because of cheaper production costs of plastic bags, the U.S. Food and grocery stores usually select them. But San Francisco is limiting consumers to use plastic bags. Starting in April of this year, the city will only allow the use of renewable bio-degradable plastic bags or paper bags. Biodegradable plastic bags in a few months rather than several hundred years ago decomposition. Whether paper or plastic bags, environmentalists advocate is the same: to be recycling to use them. They further pointed out that the best option, of course, the use of a bag, and always bring their own bags.