Addresses Quote by Dale Jamieson

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

— Leslyn Lewis

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

— Bill McKibben

The problem with climate change is that it's quite complicated for the ordinary person to understand.

— Lewis Gordon Pugh

Climate change is a complex challenge, and one that will not be easily solved.

— Ed Davey

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

— M. K. Stalin

Unfortunately, the issues of climate change, unlike many other issues, are very subtle because the changes we observe are very, very subtle.

— Wangari Maathai

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

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

It's baffling why the issues relating to climate change - [which] have far more obvious and tangible and much more clear-cut evidence about the…

— Sylvia Earle

The issue of climate change is one that we ignore at our own peril

— Barack Obama

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

I think this issue of climate change is truly important, and that it is a major tragedy how poorly it's been handled.

— Randy Olson