Change Quote by Uberto Crescenti

I'm absolutely convinced that the very small global warming we are experiencing is the result of natural causes. It's a cyclical phenomenon in the…

— Vaclav Klaus

I believe there is climate change. I'm not sure you can call it climate warming anymore, especially here in the Carolinas. I think the…

— Pat McCrory

It has become very difficult for anyone to argue that observed global warming is natural variability. We have good reason for being able to…

— James Hansen

There is a majority of scientists that say that global carbon emissions by humans causes some changes in the climate.

— Marco Rubio

I do believe that our climate is changing. I don't agree that all the changes are necessarily due solely to human activity.

— Lisa Murkowski

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

For the sake of our children and our future, we must do more to combat climate change. Now, it's true that no single event…

— Barack Obama

While I think the earth is warming, I don't think that man-made causes are the primary factor.

— Ken Buck

I think the climate has been changing for billions of years.

— Buzz Aldrin

Recent data and research supports the importance of natural climate variability and calls into question the conclusion that humans are the dominant cause of…

— Judith Curry

We appear to be overplaying this global warming issue as global warming is nothing new. It has happened in the past, not once but…

— Bangalore Puttaiya Radhakrishna

Several indisputable facts appear evident in geological and climate science that make me a true 'denier' of human-caused global warming.

— Harrison Schmitt