Fly less, sit in coach, and avoid gimmicky offsets. Here's how to make your next trip more sustainable, according to experts.

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american airlines
25% of a flight's total emissions happen during takeoff and landing, which is a reason why layovers are discouraged and some airports are adopting optimized profile descents with idle engines.

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Bill Gates says he isn't a hypocrite for using a private jet

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Billy Gates, investment fund
Bill Gates says he's "not part of the problem" and doesn't feel it's a contradiction to use a private jet while promoting climate change awareness.

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