I suggest you look up some of the older posts on this subject
I've never said humans don't contribute in some way, we do that by breathing. I also agree we should make all reasonable efforts to clean up the environment from human and natural damage. I have consistently said it was all due to human activities, have also consistently said human activities are a very minor aspect, as proven by the people who've been studying this for decades. I've also been saying the politicians and political scientists who push this as an urgent item are total BS artists.