Challenges Quote by Ban Ki-moon

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

— Ban Ki-moon

The climate crisis is the greatest challenge humanity has ever faced. From not only the warming of the earth with higher global temperatures, but…

— Al Gore

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

— Tony Blair

Global climate change is one of the greatest challenges facing humanity in the twenty-first century.

— Angela Merkel

Our overriding environmental challenge tonight is the worldwide problem of climate change, global warming, the gathering crisis that requires worldwide action.

— William J. Clinton

We have a responsibility to first understand how climate change impacts all peoples of the world. Then, we must consider the individual and collective…

— Achim Steiner

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

Reaching a general understanding that sustainability is the ultimate issue will finally bring us face-to-face with the political challenge of forging a sustainable society…

— Gaylord Nelson

Each and every one of us can make changes in the way we live our lives and become part of the solution [to climate…

— Al Gore

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

— Al Gore

Our problem is that the climate crisis hatched in our laps at a moment in history when political and social conditions were uniquely hostile…

— Naomi Klein

Let us take advantage of the opportunities presented by climate action and lay the foundations for a more prosperous and secure future for all

— Ban Ki-moon