By: Rachel Mason
I’m a million-mile flier with one of the big airlines, and that’s a bittersweet thing to say. The sweetness comes from memories of people and experiences all over the world, but bitterness rises when I think of the carbon footprint of those travels. Most of that flying took place during my previous career as a professional astronomer. Now that my research deals with the effects of rising CO2, abundant travel really doesn’t sit right.