Come Quote by Martin Rees

Devastation could arise insidiously, rather than suddenly, through unsustainable pressure on energy supplies, food, water and other natural resources. Indeed, these pressures are the…

— Martin Rees

The biggest threat we face is the possibility of terrorist groups like al Qaeda equipped with weapons of mass destruction, with nukes, bugs or…

— Dick Cheney

The major threats to our survival no longer stem from nature without but from our own human nature within. It is our carelessness, our…

— M. Scott Peck

When we think of the major threats to our national security, the first to come to mind are nuclear proliferation, rogue states and global…

— Barack Obama

Climate change is the greatest threat to humanity, perhaps ever. Global temperatures are rising at an unprecedented rate, causing drought and forest fires and…

— Cary Kennedy

For my generation, coming of age at the height of the Cold War, fear of nuclear winter seemed the leading existential threat on the…

— Ban Ki-moon

And there are other dangers potentially more dangerous than even nuclear war. There is AIDS. There is terrorism. There are drugs and more to…

— Frederick Buechner

In the history of the world, all five mass extinctions have been accompanied by massive climate change, so we are facing an incredibly serious…

— Cameron Russell

The gigantic catastrophes that threaten us today are not elemental happenings of a physical or biological order, but psychic events. To a quite terrifying…

— Carl Jung

With our evolved busy hands and our evolved busy brains, in an extraordinarily short period of time we've managed to alter the earth with…

— Kate Bernheimer

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

Much as I wish it were not so, we do live in a dangerous world. It has, in fact, always been this way. Our…

— Brad Schneider