Randall’s done several about climate change, more back when climate change denial was more widespread

https://xkcd.com/1321/ Cold https://xkcd.com/1379/ 4.5 Degrees https://xkcd.com/1732/ Earth Temperature Timeline https://xkcd.com/2500/ Global Temperature Over My Lifetime

Or just check the tag for “politics” on explainXKCD. Randall’s endorsed political candidates before as well as generally shown a general libertarian and later left-leaning bent

Oh also this one relatively recently was pretty fun

https://xkcd.com/2515/ Vaccine Research