Recycling turns materials that would otherwise become waste into valuable resources. Materials to be recycled are either brought to a collection center or picked up from the curbside, then sorted, cleaned, and reprocessed into new materials bound for manufacturing.
It almost always takes less energy to make a product from recycled materials than it does to make it from new materials. Using recycled aluminum scrap to make new aluminum cans, for example, uses 95 percent less energy than making aluminum cans from bauxite ore, the raw material used to make aluminum.Recycling saves energy primarily because it reduces the need to extract and refine natural resources.
More on recycling:
http://www.ehow.com/facts_5519046_recycling-save-energy.html
http://www.environmentalleader.com/2008/05/13/recycle-to-save-energy-the-sooner-the-better/
http://www.greenbuildingadvisor.com/blogs/dept/energy-solutions/saving-energy-recycling
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