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Not all materials are easily recyclable, such as plastics and magazines. Plastics do not contain much plastic by weight compared with their size and so many types of plastic exist that separating them usually proves too time-consuming. Mixed paper such as magazines often has too much foreign debris--which can get a recycling load rejected. Recycling aluminum is one of the most efficient energy-saving activities around; it takes 95 percent less energy to make a can out of recycled aluminum than new aluminum, according to Stanford University. The amount of paper and aluminum thrown out each year could save enough energy equivalent to 15 power plants. According to the U.S Energy Information Administration, in general, using recycled material consumes less energy that excavating natural resources from the earth. Recycling has additional benefits, such as preventing the use of limited natural resources. The Straight Dope: Is recycling worth it? Stanford University: Commonly Asked Questions -- Benefits of RecyclingOn One Hand: Sometimes, It Wastes Energy
On the Other: Commonly Recycled Materials Save Energy
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