Billions Quote by Barack Obama

I believe man-made climate change is one of the most serious threats that this country and this world face.

— David Cameron

Climate change is the greatest threat to our existence in our short history on this planet. Nobody's going to buy their way out of…

— Mark Ruffalo

The big threat to the planet is people: there are too many, doing too well economically and burning too much oil.

— James Lovelock

Climate change is the greatest threat of our time.

— Gina McCarthy

Clearly, climate change is an extremely important threat to us.

— Mark Walport

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

— Cary Kennedy

In the history of the world, all five mass extinctions have been accompanied by massive climate change, so we are facing an incredibly serious…

— Cameron Russell

I think the environment is the biggest threat mankind has ever faced.

— John Hillcoat

We face the gravest threat that civilization has ever confronted. It's global in nature and requires a global solution. Increased CO2 emissions anywhere, whether…

— Al Gore

We have to face the reality of climate change. It is arguably the biggest threat we are facing today.

— William Hague

Climate change isnʼt a distant threat. Itʼs already changing the way we live.

— Jeff Orlowski