Ich hab einen sehr schönen Bericht in einer australischen Zeitung gefunden. Die Zahlen lassen sich natürlich nicht 1 zu 1 übernehmen, aber man sollte vielleicht mal darüber nachdenken.

• Australians spent $385 million on 250 million litres of bottled water in 2006.
• It takes 3.4 megajoules of energy to make a typical one-litre plastic bottle — or 850 million megajoules to bottle 250 million litres of water.
• A barrel of oil has 6000 megajoules, so it takes 141,666 barrels of oil to make the PET plastic.
• The energy required to bring bottled water to market — converting the PET plastic into bottles, bottling the water, transporting and refrigerating the bottled water — means the amount of oil required equals 20 per cent of the bottle's volume.
• For 250 million litres of water, that equals 50 million litres of oil — 314,465 barrels of oil.
• In addition to the water in bottles, twice as much water is used in the production process. Every litre sold represents three litres of water.

Quelle