Believe Quote by Steve Irwin

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

For me the most important issue is climate change because it in some ways trumps every other issue. Everything else we care about falls…

— Moby

Address these environmental issues and you will address every issue known to man. And we keep dabbling in things that aren't really that important…

— Ted Danson

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

— Layla Moran

The single greatest issue for me as an environmentalist is climate change. I'd have to say that climate change is the single most important…

— Jerome Ringo

The biggest problem this world has today is not President [Barack] Obama with global warming, which is inconceivable, this is what he's saying. The…

— Donald Trump

Overpopulation in the United States will become THE single greatest issue facing Americans in the 21st century. We either solve it proactively or nature…

— Frosty Wooldridge

My main issue is sustainability of the Earth, and protection of those animals and people who dwell here.

— Lynda Resnick

Global warming causing climate change may be the ultimate issue that unites us all.

— Louise Burfitt-Dons

I think the two biggest issues are world hunger and health, and all the things that stem from bad food.

— Brett Dennen

I think about issues like climate change, and how six of the 10 worst impacted nations by climate change are actually on the continent…

— Opal Tometi

Global warming is another big area that we need to get on top of. And diseases in Africa, which we're also working on and…

— Richard Branson