Challenges Quote by Nathan Lewis

We have used the majority of our carbon budget and we are already at dangerous levels of CO2 concentrations, about 400 parts per million.…

— Graciela Chichilnisky

If we don't start thinking big about the CO2 problem, we may miss our opportunity to stop a climate runaway that will trash the…

— William H. Calvin

We the people, so to speak, need to realize that if we can keep ourselves fed, we might get through this long dark tunnel…

— Wes Jackson

I am hoping that the scientists and politicians who have been blindly demonizing carbon dioxide for 37 years will one day open their eyes…

— Freeman Dyson

“we learn that the way to deal with our carbon dioxide problem is through technology (low-carbon energy sources; whiz-bang contraptions to capture carbon), political…

— Judith D. Schwartz

I do not underestimate the difficulty of the challenge that global climate change presents to us. It will take a significant effort and the…

— Federico Pena

We are faced with an incredible challenge to curb our greenhouse-gas emissions around the globe. Everyone has to realize this and come to terms…

— Albert II, Prince of Monaco

Make no mistake: Tackling climate change is vital. But to see everything through the lens of short-term CO2 reductions, letting our obsession with carbon…

— Alex Steffen

Solving the climate crisis is the greatest and most complex challenge that homo sapiens have ever faced. The main solution, however, is so simple…

— Greta Thunburg

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

Our CO2 mixes with everyone else's within a year, then hangs around for centuries like a shroud.

— William H. Calvin

Despite all the progress climate scientists have made in understanding the risks we run by loading the atmosphere with CO2, the world is still…

— Jeff Goodell