Websites riddled with ads to the point of unreadability. It feels that we've regressed into the BonziBuddy/Pop-up era of the Internet, but now it's EVERYWHERE.
I've made a video to illustrate what I mean: https://youtu.be/a9nka506PEM
Is it just me or have you also had similar experience?
That takes care of a significant chunk of the ever increasing pollution.
The adtech world is totally reponsible for the state of affairs. They need to pay a big price or its not going to slow down anytime soon.
Also it may be worth trying DuckDuckGo. You need to get used to the subtle differences in how it generates results (compared to Google), but in return it won't try to guess what you meant based on search history, so imho the results are a bit more consistent and sites like Pinterest don't appear as often.