Casts Quote by Antonino Zichichi

My first inclination is to be a bit skeptical about the claims that human-produced carbon dioxide is the direct contributor to global warming.

— Buzz Aldrin

I have been one of the guys who have been skeptical of global warming from the beginning. The jury is obviously still out on…

— Michael Grimm

“Global warming is by its very nature a threat, but it is a deadly threat only because it fails to trigger the brain's alarm.…

— Dan Gilbert

Faced with the evidence, many deniers have started to admit that global warming is real, but argue that humans have little or nothing to…

— David Suzuki

There is much debate in the scientific community as to the precise sources of global warming.

— Pat Toomey

There is no doubt our earth is warming and our seas rising - or that humankind is the cause. There is no evidence to…

— Bill Shorten

I don’t think we have conclusive proof that humans are at the center of [global warming]

— Newt Gingrich

...a vocal minority of scientists so mistrusts the models and the complex fragmentary data, that some claim that global warming is a hoax. They…

— Joanne Simpson

As a geologist, I love Earth observations, but it is ridiculous to tie this objective to a 'consensus' that humans are causing global warming…

— Harrison Schmitt

The report falsely asserts that global warming is causing more extreme weather events, more droughts, more record high temperatures, more wildfires, warmer winters, etc.,…

— James Taylor

With all of the hysteria, all of the fear, all of the phony science, could it be that man-made global warming is the greatest…

— Anonymous

The science is crystal clear: we humans are the primary cause of global warming, and we face a bleak future if we fail to…

— Joseph J. Romm