United Airlines saves 170,000 gallons of fuel by using lighter paper on inflight magazine
What difference can an ounce make on an airplane?
If you are United Airlines, with 4,500 flights a day, an ounce can add up. The Chicago-based carrier said it recently began printing its inflight magazine, Hemispheres, on lighter paper, cutting 1 ounce from each magazine. It now weighs 6.85 ounces.
...