Challenge Quote by Anonymous

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

— Linda Thomas-Greenfield

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

Global climate change has a profound impact on the survival and development of mankind. It is a major challenge facing all countries.

— Hu Jintao

“The changing climate should be seen as a series of discrete, manageable problems that can be attacked from all angles simultaneously. Each problem has…

— Michael R. Bloomberg

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

— Al Gore

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

— William J. Clinton

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

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 most serious problem facing humankind is climate change.

— Bill Nye

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

— Ed Davey

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

— Ban Ki-moon