Airline asks passengers to use the toilet before boarding... so they will weigh less and help cut carbon emissions

A Japanese airline has started asking passengers to go to the toilet before boarding in a bid to reduce carbon emissions.

All Nippon Airways (ANA) claims that empty bladders mean lighter passengers, a lighter aircraft and thus lower fuel use.

Airline staff will be present at boarding gates in terminals to ask passengers waiting to fly to relieve themselves before boarding, The Independent reported. ANA hopes the weight saved will lead to a five-tonne reduction in carbon emissions over the course of 30 days.

The airline began the policy on October 1, according to Japan’s NHK television. Although it is intended as an experiment lasting one month and 42 flights, the trial may be extended if it is well-received by passengers and if results are positive. Based on an average human bladder capacity of 15oz, if 150 passengers relieved themselves on board an aircraft, this would amount to 63.7kg of waste.

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I’m no aviation expert, but does anyone think that this will reduce a significant amount of fuel usage? We’re talking 63.7 kg or 140 pounds… They could achieve the same result by selling one less ticket.

I’m betting it also has to do with cutting costs when it comes to toilet paper usage. :stuck_out_tongue:
In the mid 1990s, Delta cut a single lettuce leaf from their salads and saved $1.4 million annually.
So, I’m sure they’ll save fuel, but I’ll bet my whole carbon footprint that they’re MORE concerned about the money.

Good point. And their weight estimate is definitely on the high end. I seriously doubt that every single passenger boards the plane with a completely full bladder. Perhaps I can only speak for myself (and maybe my wife), but we generally go to the restroom before boarding a plane anyway. I’d rather not test out the tiny airplane bathroom.

But rwillenborg is right. Even such a miniscule change could save them lots of money when it is extrapolated to all their flights over time. And, of course, they’re going to prefer that to selling less tickets. :slight_smile:

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