I actually wrote up a survey a bit ago pulling together negative externalities with estimates in the literature: https://www.col-ex.org/posts/pigouvian-compendium/. From (estimated) largest to smallest, they are:
- Driving
- Emitting carbon
- Obesity
- Drinking alcohol
- Agriculture
- Municipal waste
- Smoking
- Antibiotic use
- Debt
- Gun ownership
You might enjoy this post Claire wrote: Ethical Offsetting is Antithetical to EA.
Boom, thanks! Dig the push back here. I generally agree with Scott Alexander's comment at the bottom: "I don't think ethical offsetting is antithetical to EA. I think it's orthogonal to EA."
(Though I also believe there are some "macro systemic" reasons for believing that offsetting is a crucial piece to moving more folks to an EA-based non-accumulation mindset. More detailed explanation of this later!)