Airlines are investing in biofuels. How’s that shaking out?

Grist
By Nathanael JohnsonJun 30, 2015, 6:31 pm85 pts
Flying on an airplane is one of the most carbon-intensive things you can do. Whenever I calculate my carbon footprint, I start out feeling pretty good for biking and living in a place where more than half the electricity comes from non-greenhouse-gas emitting sources. Then I plug in my air travel, and it…

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