more empty, more flying by eun jee hyun from netherlands

This sign has the purpose of making people being aware of what they do and making their travel greener.
Did you know that at 30,000 feet the amount of fuel it takes to flush the toilet could power a fuel-efficient car for 10 to 12 kilometers? Each toilet flush uses, on average, one liter of fuel.
What this sign design suggests isn’t that you are not supposed to use toilet in the airplane. When the nature calls you should answer it.
But you can try is to try to go to bathroom before you get on the airplane.
Don't be one of those people who rush to the bathroom as soon as the airplane is up the sky. And why don’t you think about responsibility of your behavior that you will do in the airplane whenever you see this sign on the way to go to your gate?