Experts Quote by David Letterman

Global warming is too serious for the world any longer to ignore its danger or split into opposing factions on it.

— Tony Blair

...trying to predict whether global warming will moderate the next ice age is not only impossible but irrelevant. It doesn't help us get through…

— John Harte

Global warming isn't a prediction. It is happening.

— James Hansen

I know that the precise magnitude and patterns of climate change cannot be fully predicted. But global warming clearly is a growing, long-term threat…

— William J. Clinton

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

The warnings about global warming have been extremely clear for a long time. We are facing a global climate crisis. It is deepening. We…

— Al Gore

Global warming is no longer a philosophical threat, no longer a future threat, no longer a threat at all. It's our reality.

— Bill McKibben

It seems incontrovertible to me that there is a global warming effect and that it is going to be serious, probably not in the…

— Bjorn Lomborg

Scientists have been warning about global warming for decades. It's too late to stop it now, but we can lessen its severity and impacts.

— David Suzuki

This very expensive GLOBAL WARMING bullshit has got to stop. Our planet is freezing, record low temps,and our GW scientists are stuck in ice.

— Donald Trump

Some good news. Finally, President Bush is going to do something about global warming. He became alarmed when another chunk of ice fell off…

— David Letterman

They say if the warming trend continues, by 2015 Hillary Clinton might actually thaw out.

— Jay Leno