10 Ways to Save Money—and the Planet—on Your Summer Vacation

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Day Tripper
Take a daytime flight instead of an evening one. Although there is no difference between day and evening flights in terms of carbon emissions, the warming effects of airplane contrails are twice as high at night because they continue to trap the earth's heat but do not reflect sunlight as they do during the day. Flying during the day may also lead to a more restful night once you reach your destination, minimizing jet lag.
Take a daytime flight instead of an evening one. Although there is no difference between day and evening flights in terms of carbon emissions, the warming effects of airplane contrails are twice as high at night because they continue to trap the earth's heat but do not reflect sunlight as they do during the day. Flying during the day may also lead to a more restful night once you reach your destination, minimizing jet lag.