Challenges Quote by Guilherme Leal

Most challenges arise suddenly, with little warning. Climate change is different. For decades, we've known why global average temperatures are rising, why greenhouse gas…

— Brian Deese

Climate change is the biggest issue facing our planet. Extreme weather hit every populated continent in 2018, killing, injuring and displacing millions.

— Layla Moran

Yet, despite our many advances, our environment is still threatened by a range of problems, including global climate change, energy dependence on unsustainable fossil…

— Dan Lipinski

One problem is that we are heavily dependent upon fossil fuels. And that's where the greenhouse gases come from, by and large, some deforestation,…

— Richard Harris

The two major challenges for the 21st century are to improve the economic situation of the majority and save as much of the planet…

— E. O. Wilson

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 most serious problem facing humankind is climate change.

— Bill Nye

...the world needs to face up to the challenge of climate change, and to do so now. It is clear that climate change poses…

— Gordon Brown

Climate change has far-reaching consequences for our own survival on this planet. As an issue, it overrides everything else.

— Albert II, Prince of Monaco

We unfortunately already live on a planet where the climate has changed and will continue to change no matter what we do now. We're…

— Alex Steffen

Climate change is a humongous challenge but it also presents numerous economic opportunities.

— Clive Lewis

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