Argument Quote by Mike Thompson

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

— Pat Toomey

How is it that, in the face of overwhelming scientific evidence, there are still some who would deny the dangers of climate change? Not…

— Nicholas Stern

It's easier to discredit the science than to say that climate change is a genuine issue but we don't want to do anything about…

— Katharine Hayhoe

The debate is over. The scientific community has spoken in a virtually unanimous voice. Climate change is real. It is caused by human activity.

— Bernie Sanders

...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

I don't spend a huge amount of time fixated on climate denial because I don't think that their objections, though sometimes couched in science,…

— Bill McKibben

The public discourse on global warming has little in common with the standards of scientific discourse. Rather, it is part of political discourse where…

— Richard Lindzen

Despite the international scientific community's consensus on climate change, a small number of critics continue to deny that climate change exists or that humans…

— David Suzuki

Global warming is such a politically charged issue that we are losing our perspective on the issue and more importantly losing an open forum…

— Topper Shutt

We have a policy at Greenpeace that we no longer debate people who don't accept the scientific reality of anthropogenic climate change.

— Ben Stewart

There is no debate in the scientific community...We need [Congress] to change things, not to deny what's happening.

— Bill Nye

The truth about the climate crisis is still inconvenient to the large carbon polluters. And so they want to bob and weave and dodge…

— Al Gore