Causes Quote by Wallace Stegner

Humans are remarkable: the first species in almost four billion years of life on earth that dominates the biosphere. This gives us the power,…

— David Christian

We are the only species which, when it chooses to do so, will go to great effort to save what it might destroy.

— Wallace Stegner

What makes this danger so terrible is that humans tip the balance of your world. No other species can make such a difference, for…

— Anonymous

By far the single greatest danger facing humankind - in fact, all living beings on our planet - is the threat of nuclear destruction.

— Dalai Lama

There is a very real danger that we will kill everything on this planet now that we have the technological power to do so.

— Stephen Hawking

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

The specific danger is us; we are rampant; this earth is our only friend; we are destroying it increment by increment at a horrific…

— William Kittredge

Lots of the things we do are dangerous, but life itself is dangerous; nothing is really worth bothering with that isn't full of danger

— Jimi Hendrix

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

Humankind has suddenly entered into a brand new relationship with our planet. Unless we quickly and profoundly change the course of our civilization, we…

— Al Gore

The greatest threat to our planet is the belief that someone else will save it.

— Robert Swan

We are the only species systematically destroying its own habitat.

— Marianne Williamson