This is not true. "Higher and lower incomes make little difference to people's concern about the natural environment, according to new research from the University of Bristol." https://phys.org/news/2012-09-environmentalism-rich-poor.htm...
See also: "People Of Color And Poor Americans Are More Likely To Care About Climate Change, Study Says" https://www.livekindly.com/people-color-poor-likely-care-cli...