Carbon Quote by Don Aitkin

There is no strong evidence to prove significant human influence on climate on a global basis. The global cooling trend from 1940 to 1970…

— Peter Stilbs

The Earth is warming but physical evidence from around the world tells us that human-emitted carbon dioxide has played only a minor role in…

— Fred Singer

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

Are global temperatures rising? Surely, they were rising from the late 1970s to 1998, but 'there has been no net global warming since 1998.'…

— John R. Lott Jr

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 think that climatic changes have a natural causes according many geological data... I am very glad to sign the U.S. Senate's report of…

— Uberto Crescenti

The so-called scientific basis of the climate problem is within my professional competence as a meteorologist. It is my professional opinion that there is…

— Hendrik Tennekes

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

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

Is global warming new? I don't know. When I was young I remember the sun being hot.

— Dennis Miller

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

We thought we knew 20 years ago. That led to some alarmist books – mine included – because it looked clear-cut, but it hasn’t…

— James Lovelock