I'm embarrassed that I didn't know total annual US CO2e emissions have _dropped_ since circa 2005. My only source when I wrote my comment was the in-browser graph in the Wolfram Alpha search result for "us greenhouse gas emissions history" (
https://www.wolframalpha.com/input/?i=us+greenhouse+gas+emis...), which presents a data period of only 1990-2005. A more complete source is
https://www.c2es.org/content/u-s-emissions/.
Thank you for reminding me not to hastily extrapolate data when it happens to fit my expectation of what's going on, and when actual data are readily available.