Source: https://commons.wikimedia.org/wiki/File:2021_Survey_on_existence_of_global_warming_and_responsibility_for_climate_change_-_bar_chart.svg
Source: https://commons.wikimedia.org/wiki/File:2021_Survey_on_existence_of_global_warming_and_responsibility_for_climate_change_-_bar_chart.svg
I know a highly educated seismologist who makes his work his hobby and has been an enthusiast for nature-related pursuits for decades...
And he thinks people have next to zero contributions to the climate. His go-tos are volcanoes and sunspots to explain climate changes, and he blames, I kid you not, the "big green energy hoax" for conflicting data.