Accepting Quote by John Howard

I'm no longer sceptical. I no longer have any doubt at all. I think climate change is the major challenge facing the world.

— David Attenborough

Unlike many in the conservative camp, I accept theories of global warming, and accept that man-made activity has played a part in global warming.…

— Bradley A. Smith

Once upon a time, I was a climate-change skeptic.

— James Balog

On the science of global climate change, I'm an agnostic. I've seen Al Gore's movie, and I've read reports from the Intergovernmental Panel on…

— Robert Bryce

The dialogue around climate change can often become mired in gloom and doom, which is understandable given the topic.

— Tom Steyer

You always have to be worried about something that is considered a so-called 'scientific theory' that fits every scenario. Climate change, as they've defined…

— Ted Cruz

Sure there's a percentage of people who are like, "It snowed in May. I don't believe in climate change." Well, that's crazy, but that's…

— Chuck Klosterman

If you really accept that global warming puts the world at risk, then you think you would be open to any solution that could…

— Steven Levitt

When it comes to climate, we can all make a big difference. At the most basic level, don't let denial go unchallenged and win…

— Al Gore

I see myself as a climate change skeptic and a skeptic looks at the evidence and bases conclusions on the evidence rather than on…

— Ross Garnaut

Climate change isn't something people get to choose to believe or not: it's happening.

— Matt Gaetz

As a conservative, I maintain a healthy skepticism of the theory of man-made global warming. I also believe that more people enjoying the fruits…

— Gary Bauer