Picking out sustainable seafood.
Finally, avoid fish that have been flown in from far away. When it comes to seafood, transportation generally accounts for fewer emissions than feed production or fuel use by fishing boats. But fresh seafood that's been airlifted from abroad will take an added toll on the planet.
Is there an environmental quandary that's been keeping you up at night? Send it to firstname.lastname@example.org, and check this space every Tuesday.
Nina Shen Rastogi is a writer and editor, and is also the vice president for content at Figment.
Photograph of salmon by Eising/Photodisc/Getty Creative Images.