Reddit reviews How Bad Are Bananas?: The Carbon Footprint of Everything

A glass wine bottle is ~330 g CO2e (couldn't find info a glass milk bottles, but I'm assuming it'd be close).

A pint of milk is ~600 g CO2e (excluding the carbon footprint of refrigeration, transport, and packaging).

A plastic bottle is ~30 g CO2e.

Data is from "How Bad Are Bananas." Under the sections "A pint of milk" and "A bottle of wine."

I recommend the book "How Bad are Bananas?" It's basically a list of everything's estimated carbon cost.

https://www.goodreads.com/book/show/7230015-how-bad-are-bananas
https://www.amazon.com/How-Bad-Are-Bananas-Everything/dp/1553658310
https://play.google.com/store/books/details?id=olm9BwAAQBAJ&source=productsearch&utm_source=HA_Desktop_US&utm_medium=SEM&utm_campaign=PLA&pcampaignid=MKTAD0930BO1&gclid=EAIaIQobChMIndGzn7iO1gIVD5l-Ch1eZA2sEAQYASABEgIwnPD_BwE&gclsrc=aw.ds&dclid=CPidiqK4jtYCFc77ZAoddnMCCA

Well, people do use a metric called the carbon footprint.

Instead of tracking the total energy expenditure they go one step further and try to find the net total carbon emissions over the course of production, transportation, etc.

Bananas, ironically, have a super low carbon footprint. Probably because they can be shipped ridiculously efficiently since they ripen so slowly and grow so prolifically.

In fact, bananas are even part of a title of a book on the subject, although I haven't read it so I cannot vouch for it.

It seems to me that the situation would be changing too quickly for the book to retain any lasting relevance...Such things need to be calculated dynamically.

This is a fun book to start with:

https://www.amazon.com/How-Bad-Are-Bananas-Everything/dp/1553658310

https://www.amazon.com/How-Bad-Are-Bananas-Everything/dp/1553658310

https://www.cmu.edu/news/stories/archives/2015/december/diet-and-environment.html

Link to the study: http://link.springer.com/article/10.1007/s10669-015-9577-y

http://www.sciencealert.com/vegetarian-and-healthy-diets-may-actually-be-worse-for-the-environment-study-finds

https://en.wikipedia.org/wiki/Environmental_impact_of_aviation

"Considering that about one-third of greenhouse gases (PDF) emitted from agriculture in the United States come from fertilizers and pesticides," - http://www.slate.com/articles/health_and_science/the_green_lantern/2009/11/sustainable_salads.html - it also links to a study where it got that quote

http://www.pma.com/~/media/pma-files/research-and-development/usa.pdf?la=en

https://www.ers.usda.gov/data-products/us-food-imports/

And I'm not sure how you interpreted my comment as being defeatist. I prefaced with getting in touch with local representatives, joining organizations, getting your voice heard, etc. Virtue signaling that you eat less meat to save the environment is a small step away from saying you're ignoring the issue and trying to make yourself feel better rather than actually doing something about it. That's what Arnold is doing.