Courses Quote by Lester R. Brown

The dramatic importance of climate changes to the world’s future has been dangerously underestimated by many, often because we have been lulled by modern…

— Stephen Schneider

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

The more the climate is forced to change, the more likely it is to hit some unforeseen threshold that can trigger quite fast, surprising…

— Richard Alley

Climate change is one of the issues I worry most about because its impacts are enormous. But they're gradual, they're not immediate.

— Barack Obama

The climate is nearing tipping points. Changes are beginning to appear and there is a potential for explosive changes, effects that would be irreversible,…

— James Hansen

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

The increasing frequency of extreme weather events, droughts and floods is in line with what climate scientists have been predicting for decades - and…

— David Suzuki

Climate change has far-reaching consequences for our own survival on this planet. As an issue, it overrides everything else.

— Albert II, Prince of Monaco

“Climate Change is caused by human emissions; it moves faster or slower partly in response to our rate of emissions, but also because of…

— Sharon Astyk

Most challenges arise suddenly, with little warning. Climate change is different. For decades, we've known why global average temperatures are rising, why greenhouse gas…

— Brian Deese

The world's going to change climatically. We just want to control the change. We want to have a high quality of life for billions…

— Bill Nye