By Debra Kamin from ITP Travel With airplanes producing a large amount of climate-warming emissions, a growing number of travelers are signing pledges to keep their journeys on the ground. The New York Times AIRLINES AND AIRPLANES, Global Warming, Sustainable Living, Travel and Vacations, Carbon Dioxide, Fuel Emissions (Transportation), Thunberg, Greta, Flight Free USA, We Stay on the Ground, Stay Grounded
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