Challenges Quote by Jose Manuel Barroso

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

— Tony Blair

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

— Linda Thomas-Greenfield

We must turn the greatest collective challenge facing humankind today, climate change, into the greatest opportunity for common progress towards a sustainable future

— Ban Ki-moon

Climate change is "some kind of tricky campaign made up by some commercial structures to promote their business projects."

— Dmitry Medvedev

We need every person on Earth to acknowledge that climate change is real and encourage each other and our leaders to address the challenge.

— Richard Branson

We have to wrap this imperative of addressing climate change in a prosperity framework, and secondly we have to do a much better job…

— Martin O'Malley

We have to fight climate change like we actually want to win.

— Jagmeet Singh

Climate change is, over the longer term, our greatest national security challenge. We have to do all we can to slow it down and…

— Wesley K. Wark

Climate change...is, simply, the greatest collective challenge we face as a human family.

— Ban Ki-moon

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

The truth is that climate change is presenting the greatest challenge humanity has ever faced.

— Al Gore

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