Causes Quote by Mechai Viravaidya

Global warming is real and human activity is the main cause. The consequences are mainly negative and headed toward catastrophic, unless we act. However,…

— Al Gore

The earth is warming. Humans are contributing.

— Brett Kavanaugh

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

“Humans aren’t going to do anything in time to prevent the planet from being destroyed wholesale. Poor people are too preoccupied by primary emergencies,…

— Aric McBay

For every expert that says humans are the cause of 'climate change' there are 10 more who say we aren't.

— Bradley A. Blakeman

'Global warming' is just the latest in a long line of hysterical crusades to which we seem to be increasingly susceptible.

— Thomas Sowell

And by the way, the United States is the biggest cause in global warming pollution. And we're doing the least about it. I find…

— Laurie David

We're not at the point of trying to stop global warming; it's too late for that. We're trying to keep it from becoming a…

— Bill McKibben

We are upsetting the atmosphere upon which all life depends. In the late 80s when I began to take climate change seriously, we referred…

— David Suzuki

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

There are too many people, that's why we have global warming. We have global warming because too many people are using too much stuff.

— Ted Turner

We're handing them [young people & future generations] a climate system which is potentially out of their control. We're in an emergency: you can…

— James Hansen