Moving from direct environmental issues to the one-step-removed topic of food, I'm fascinated by this article on junk food from Vox. Did you know that 75% of adolescents in the US get more than half of their calories from junk food?! Even though that taxing something bad like junk food seems like a good idea, David Just, who graduated from the same program I did, and Marc Bellemare, a co-author of Towson's Seth Gitter, have some interesting thoughts on problems with the junk food tax. They point to the political problems associated with getting a tax passed and the American addiction to convenience as obstacles. Also, our current food system would need to do better at producing more, cheaper food that isn't as bad for you.
Lots of complicated factors!