Every round trip from New York City to London costs the Arctic 30 square feet in lost ice.More

Customs and Border anxiety, the boredom of endless lines, and jet lag: flying sucks. Add guilt over carbon emissions and it becomes harder to justify why we still do it.

The aviation industry is currently responsible for about 2 percent of global greenhouse gas emissions. This figure is set to grow as air travel becomes increasingly popular. Airlines transported 4.3 billion passengers worldwide last year, an increase of 38 million over the year before. For every round-trip flight from New York City to London, which

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