Atmosphere Quote by Bill Nye

The most serious problem facing humankind is climate change.

— Bill Nye

It's obvious that the key problem facing humanity in the coming century is how to bring a better quality of life - for 8…

— E. O. Wilson

Climate change is happening, humans are causing it, and I think this is perhaps the most serious environmental issue facing us.

— Bill Nye

In what I think is the most serious problem the world faces, which is the population explosion, we will come I think to a…

— Charlton Heston

The destruction of aquatic ecosystem health, and the increasing water scarcity, are in my opinion the most pressing environmental problems facing human kind.

— Maude Barlow

Global warming is real and human activity is the main cause. The consequences are mainly negative and headed toward catastrophic, unless we act. However,…

— Al Gore

The physical and emotional health of an entire generation and the economic health and security of our nation is at stake. This isn't the…

— Michelle Obama

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

— Layla Moran

Phasing out the human race will solve every problem on earth, social and environmental.

— David Foreman

There are serious problems that have to do with the environment, that have to do with the way in which we live and consume.

— Donald Wuerl

The biggest problem that the world has is nuclear weapons. Global warming is not our big problem. Our big problem is the maniacs that…

— Donald Trump

The world faces enormous human development and environmental challenges, from poverty and disease to food security and climate change.

— Paul Polman