Travel light
Did you know that each additional kilo you bring on a plane requires extra fuel? This is in addition to the increasing amount of fuel required for each take-off as global temperatures rise, due to the higher minimum speed required for planes to get off the ground as temperatures heat up.
Not only does travelling light help you keep airfare down, but it's also good for the planet. The next time you're packing for a trip, be sure to only bring the necessities with you – especially if it's just for a weekend.