Challenge Quote by Ed Davey

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

Climate change is a challenge for all of us all over the globe.

— Linda Thomas-Greenfield

Climate change is a huge problem, an almost insoluble problem.

— Bill McKibben

The climate challenge illustrates how we have to change. The developing countries need more support and opportunities to develop and use clean energy. Because…

— Gro Harlem Brundtland

I believe that the issue of climate change is very complicated.

— Leslyn Lewis

I have reiterated on many occasions that climate change is going to be the biggest challenge.

— M. K. Stalin

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

Few challenges facing America and the world are more urgent than combating climate change. The science is beyond dispute and the facts are clear.

— Barack Obama

Climate change is probably the greatest long-term challenge facing the human race

— Tony Blair

A lot of people are focused on climate change as a defining challenge of our time. A lot of people think it is a…

— Cass Sunstein

Climate change is new and complex. We don't have all the answers.

— Graciela Chichilnisky

Climate change is a serious problem. We all need to do what we can. Unless that means I've got to change stuff. Then I'm…

— Craig Ferguson