Recycling in general is not a bad idea, but plastic bottles are of particular concern. They are everywhere, holding water and soft drinks and everything in between. Recycling them is beneficial because manufacturing them is potentially harmful.
Making the Bottle
Plastic bottles are made from Polyethylene Terephthalate (PTH). To make this plastic, manufacturers use petroleum products. Petroleum is derived from crude oil, which is a controversial substance to say the least. Oil is a non-renewable resource, and conserving as much of it as possible is a priority among environmentalists.
Plastic bottle manufacturing also produces emissions that may harm our atmosphere and subsequently our planet. Manufacturing plastic bottles from used ones, however, takes much less energy than making plastic bottles from raw materials.