Change Quote by Alastair Reynolds

The next most dangerous thing [after nuclear proliferation] is probably... global warming, and then, right behind that are overpopulation -- we need to get…

— Ted Turner

The risk of an all-out nuclear holocaust destroying all life on the planet has diminished, but the danger of actual nuclear weapons use has…

— David Cortright

If we did not take action to solve this crisis, it could indeed threaten the future of human civilization. That sounds shrill. It sounds…

— Al Gore

Our immediate striving must be aimed at preventing what, in the present situation, is the greatest threat to the very survival of mankind, the…

— Alva Myrdal

I think that once the nuclear alternative happens, it's over. At the same time, we have to be prepared.

— Donald Trump

Well, our concern has to do with the period prior to 9/11, up to and including the catastrophe that occurred. And thank goodness, we're…

— Richard Ben-Veniste

I can't really worry about nuclear war any more than I can worry about the aliens coming.

— Kamasi Washington

If nuclear warfare is believed to be somewhat controlled, then climate change is now the greatest threat.

— Graciela Chichilnisky

As someone fairly committed to the death of our solar system and ultimately the entropy of the universe, I think the question of what…

— Bruce Hood

Never waste a good crisis...Don't waste it when it can have a very positive impact on climate change and energy security.

— Hillary Clinton

That is potentially putting us all in the target hairs now is the reactivation of a new nuclear arms race. This arms race and…

— Jill Stein

Just like Sept. 11, only with nuclear weapons this time, that's the threat. I think that is the threat. I think it's just facing…

— John Bolton