Stephen Hawking Quotes

We are killing life on Earth, we're in the sixth mass extinction event and it's possible that human beings will go extinct. We're in a culture that doesn't want you to think about that.

It wont be long now it wont be long man is making deserts of the earth it wont be long now before man will have used it up so that nothing but ants and centipedes and scorpions can find a living on it.

The environmental crisis is a sign that the ecosphere is now so heavily strained that its continued stability is threatened. It is a warning that we must discover the source of this suicidal drive and master it before it destroys the environment-and ourselves.

The ocean is dying, and we have no place to escape to if this experiment doesn't go in our favor.

A world is in danger, this planet is in great danger!

Threats that could wipe out the bulk of life on earth abound. Planetary catastrophe could come in the form of a killer asteroid impact, the eruption of massive supervolcanoes, a nearby gamma ray burst that sterilizes the earth, or by human-driven environmental collapse.

When is the proper time to cry wolf. Must we wait until the prey, in this case the world’s environment, is mangled by the wolf’s grip.

The only actual solution is the eventual collapse and demise of civilization... I think it needs to happen, but no one, not even me, really wants it to happen.

You will not understand your part within the framework of nature until you actually see yourselves in danger of tearing it apart.

When the last living thing Has died on account of us, How poetical it would be If Earth could say, In a voice floating up Perhaps From the floor Of the Grand Canyon, "It is done." People did not like it here.

Clouds of a different sort signal an environmental holocaust without precedent. Once again, world leaders waffle, hoping the danger will dissipate. Yet today the evidence is as clear as the sounds of glass shattering in Berlin.

My world, my Earth is a ruin. A planet spoiled by the human species. We multiplied and fought and gobbled until there was nothing left, and then we died. We controlled neither appetite nor violence; we did not adapt. We destroyed ourselves. But we destroyed the world first.

Human beings are so destructive. I sometimes think we're a kind of plague, that will scrub the earth clean. We destroy things so well that I sometimes think, maybe that's our function. Maybe every few eons, some animal comes along that kills off the rest of the world, clears the decks, and lets evolution proceed to its next phase.

Humankind has suddenly entered into a brand new relationship with our planet. Unless we quickly and profoundly change the course of our civilization, we face an immediate and grave danger of destroying the worldwide ecological system that sustains life as we know it.

Our house is burning and we look elsewhere. Nature, mutilated and over-exploited, can no longer reconstitute itself and we refuse to admit it. Humanity is suffering. It is suffering from poor development, in the North as in the South, and we are indifferent. The Earth and humanity are in peril and we are all responsible. It is time now to open our eyes

What's at risk [in 100 years] if we do not take action, truly is the survival of civilization as we know it... Literally that is the case. We have seen global warming so far of just a little bit less than one degree Celsius and look at what's happened. Superstorm Sandy. Boulder Colorado. All these fires. Hurricane Irene one year before.

For a hundred years or more the world, our world, has been dying. And not one man, in these last hundred years or so, has been crazy enough to put a bomb up the asshole of creation and set it off. The world is rotting away, dying piecemeal. But it needs the coup de grace, it needs to be blown to smithereens. Not one of us is intact, and yet we have in us all the continents and the seas between the continents and the birds of the air. We are going to put it down ― the evolution of this world which has died but which has not been buried.

The truth is that we're at a critical juncture in the history of our species and if we don't act soon, we could inhabit a world we don't recognize anymore.

Humans are the absolute worst thing to happen to this planet.

I wanted to destroy everything beautiful I'd never have. Burn the Amazon rain forests. Pump chlorofluorocarbons straight up to gobble the ozone. Open the dump valves on supertankers and uncap offshore oil wells. I wanted to kill all the fish I couldn't afford to eat, and smother the French beaches I'd never see. I wanted the whole world to hit bottom.

Humans may be destroying their chances for decent survival. It won't kill everybody, but it would change the world dramatically.

All the higher life forms scythed away, just like that. [ . . . ] Nothing but dust and fundamentalists.

It's the next annihilation of vast numbers of species. It is happening now, and we, the human race, are its cause

We’re destroying the world because we are, in a very literal and deliberate way, at war with it.