Sure, some bulbs are more affected by the number of times they’re switched on and off than by the length of time they’re left on, but a good rule of thumb is to turn off the lights you don’t need. Reducing energy use = decreasing power plant emissions = protecting the air = preventing climate change.
Packing efficiently for a flight not only helps you narrow down what you truly need, it also reduces an aircraft’s carbon emissions. To lighten your load, cut out clothes that aren’t multipurpose and get rid of paper weight by downloading books on an iPad or e-reader. The next time you feel that familiar urge to complain about baggage rules and fees, remember that the lighter the aircraft, the less fuel it burns. The airline matters, too: A 2017 study from the International Council on Clean Transportation shows that Alaska Airlines continues to be a fuel-efficient leader; Frontier, Spirit, Southwest, and Hawaiian rounded out the top five.
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