Activity Quote by Michio Kaku

Climate change is a controversial subject, right? People will debate whether there is climate change... that's a whole political debate that I don't want…

— Andrew Cuomo

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

— Pat Toomey

I have to admit that, until recently, I was somewhat wary of the (global) warming debate. I believe it is now our responsibility to…

— Rupert Murdoch

The question of whether or to what extent human activities are causing global warming is not a matter of ideology, let alone of belief.…

— Malcolm Turnbull

Global warming is a political issue. It is as much a political issue to the left as abortion is. It's as big a political…

— Rush Limbaugh

Many people have the impression that there is significant scientific disagreement about global climate change. It's time to lay that misapprehension to rest. There…

— Naomi Oreskes

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 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

It used to be controversial whether smoking caused lung cancer, it used to be controversial whether HIV caused AIDS. Now, there are a few…

— Martin Rees

The debate on climate change and global warming has been intensely polarized. A great deal of this 'noise' has clouded the very real and…

— Johnny Chan

'Global warming' is just the latest in a long line of hysterical crusades to which we seem to be increasingly susceptible.

— Thomas Sowell

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