It’s actually ‘anthropogenic’ (as in caused ‘generated’ by humans) if we’re going to be pedantic

I'm indifferent, it's just definitely not anthropomorphic.

FWIW I did actually check before I commented, but just using my local dict install. Anthropogenic seems to be often used in the news WRT climate change, but the definitions left me with the impression anthropic seemed more correct (brevity bonus too):

  > From WordNet (r) 3.1 (2011) [wn]:
  >
  >   anthropic
  >       adj 1: relating to mankind or the period of mankind's existence
  >              [syn: {anthropic}, {anthropical}]
  >
  >   anthropogenic
  >       adj 1: of or relating to the study of the origins and
  >              development of human beings [syn: {anthropogenetic},
  >              {anthropogenic}]
  >

> FWIW I did actually check before I commented, but just using my local dict install. Anthropogenic seems to be often used in the news WRT climate change, but the definitions left me with the impression anthropic seemed more correct (brevity bonus too)

You may need to look beyond definition 1 (though in many, but not all, current dictionaries, you wouldn't have to), “anthropogenic" is clearly correct and the most specific adjective for human-caused climate change, and is quite often the example shown with the relevant definition. See, e. g., https://en.m.wiktionary.org/wiki/anthropogenic

“Anthropic” would not be a wrong adjective for climate change somehow associated temporally or causally with the existence of humanity, but would be less specific.

Anthropogenic seems like the best word.