Those braggadocios, supercilious denizens of the Left love to ridicule the "faith" of those on the Right. They regard their faith to be the sine qua non of primitivity, rather like the world of the movie Deliverance. While many of their criticisms of the Right have substance, such criticisms from the Left represent "the pot calling the kettle black." The Left do exactly what they criticize the Right for doing.
The Left have adopted a faith-based "environmentalism," as opposed to fact-based, and they "believe on" it, just like the Right do theirs. "Faith" refers to any belief system for which no factual evidence and proof exist. The Left "just know," by the intensity and depth of their feelings, that "global warming" and all other impending climate and environmental catastrophes have been caused by man, and we are facing mass extinction. Proof? They resort to "a consensus of scientists and experts agree" with their beliefs, including the agenda-pushing, fact-avoiding U.N. IPCC. Taking a poll does not produce truth, to say nothing about the quality of their "experts." For the Left, their faith is as much an emotional contagion as any group hysterias of Medieval times.
Here is an outstanding op-ed exposing one aspect of the "enviromental faith" of the Left and its irrational consequences: