The unit to measure passenger transport demand is the passenger-kilometre (pkm), which represents one passenger travelling a distance of one kilometre. It is based on transport by passenger cars, buses and coaches and trains. The decoupling indicator is calculated as the ratio of passenger transport demand to GDP measured in 2000 constant prices.
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Showers require as little as a third of the water! However, this is true as long as you keep them under five minutes long. So be quick and use a shower timer to keep track of time next time you hop in!
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