Reasons to recycle:
* The cost of collection and disposal of one tonne of waste is between 120 and 46 € in Spain [need citation].
* In Spain, were launched a year more than 300,000 tons of metals. This is a waste of material. [Need citation]
* If recycled glass saves 90% energy for each tonne recycled saves 1.2 tonnes of raw materials. [Need citation]
* Lost two tons of plastic equivalent to saving a ton of oil. [Need citation]
* For every ton of aluminum released to be drawn dump four tons of bauxite (the ore which yields). During the manufacture produce two tons of pollutants and waste very difficult to eliminate. [Need citation]
* In one ton of paper recycled 17 trees are saved.
Source : http://ca.wikipedia.org/wiki/Reciclatge