Activity Quote by Al Gore

The science is crystal clear: we humans are the primary cause of global warming, and we face a bleak future if we fail to…

— Joseph J. Romm

Climate change is the greatest threat to our common future. We have a very short period of time to tackle the problem before it…

— Chris Huhne

Climate change is a global problem. The planet is warming because of the growing level of greenhouse gas emissions from human activity. If this…

— Malcolm Turnbull

If you ask what you are going to do about global warming, the only rational answer is to change the way in which we…

— Barry Commoner

Climate change is real, it is caused by human activity, and it is already causing devastating problems in America and around the world.

— Bernie Sanders

I believe global warming and climate change are real threats to our planet.

— Andrew Cuomo

Global warming is a fact. Now it's up to liberals to make it a reality. Hence there is crucial importance in preventing powerful, greedy…

— P. J. O'Rourke

The pace of global warming is accelerating and the scale of the impact is devastating. The time for action is limited - we are…

— Eliot Spitzer

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

Climate change is the greatest threat to humanity, perhaps ever. Global temperatures are rising at an unprecedented rate, causing drought and forest fires and…

— Cary Kennedy

Nothing is as daunting as the threats associated with global warming. That's the biggie. Everyone bangs on about rising sea levels but the real…

— Tim Winton

I think global warming is a very real problem for our world. I've seen the changes that have taken place in the Antarctic, in…

— Edmund Hillary