Aldo Leopold Quotes

If you take away the predators in the prairies and the national parks, you suddenly have an explosion of elk, and then you have a lack of the food source for the elk, so they strip all the ground bare and that takes away the cover, on and on and on and on. The whole food chain is disrupted.

I'm pessimistic about the future of the planet. These big guys don't realize for everything they do, there's a reaction. You have to pay. That's karma.

Hunting, fishing, and trapping is literally perfect. It's the perfect system by which to balance and ground the animal populations for next year's productivity.

Wilderness is a resource which can shrink but not grow. Invasions can be arrested or modified in a manner to keep an area usable either for recreation, science or for wildlife, but the creation of new wilderness in the full sense of the word is impossible. It follows, then, that any wilderness program is a rearguard action, through which retreats are reduced to a minimum.

We reached the old wolf in time to watch a fierce green fire dying in her eyes. I realized then, and have known ever since, that there was something new to me in those eyes – something known only to her and to the mountain. I was young then, and full of trigger-itch; I thought that because fewer wolves meant more deer, that no wolves would mean hunters’ paradise. But after seeing the green fire die, I sensed that neither the wolf nor the mountain agreed with such a view.

The destruction of our environment and resources cannot be stemmed unless the growth of the world's population is stemmed and ultimately reduced.

We know it is impossible to go on finding, moving and wasting oil, leveling forests, paving land, dumping poisons, and multiplying our numbers. A new way of life, a new set of thoughts must be found.

Unless we practice conservation, those who come after us will have to pay the price of misery, degradation, and failure for the progress and prosperity of our day.

If we continue to address the issue of the environment where we live as though we're the only species that lives here, we'll create a disaster for ourselves.

Civilization can never be sustainable.

If all mankind were to disappear, the world would regenerate back to the rich state of equilibrium that existed ten thousand years ago. If insects were to vanish, the environment would collapse into chaos.

Pollution and the exhaustion of natural resources depend and will depend in the future on the absolute level of total economic activity. This means that is necessary to restrain both the rate of growth of population and, at least in the developed countries, the rate of growth of consumption per head.

Every time there is an economic intensification, there is an ecological impact.

Can you name an environmental problem that would NOT be easier to solve with fewer people, or harder (and ultimately impossible) with more? Nobody can.

There is much concern these days about the taking of wild animals for sport, but against that must be placed the protection given to wild habitats and many other wild species in the process of keeping game … as with everything in nature, it is all a question of balance and this balance can only be achieved by knowledge and understanding …

The key to understanding overpopulation is not population density but the numbers of people in an area relative to its resources and the capacity of the environment to sustain human activities; that is, to the area’s carrying capacity. When is an area overpopulated? When its population can’t be maintained without rapidly depleting nonrenewable resources.... By this standard, the entire planet and virtually every nation is already vastly overpopulated

Crocs are apex predators, and as with all apex predators, they are critical to the environment: if you lose the crocs, you'll lose the barramundi, you'll lose the crabs - a catfish can eat 30,000 barramundi fingerlings, and who do you think eats the catfish? Crocs.

Crocodiles are an apex predator and crucial to the ecosystem, keeping waterways and wetlands healthy. Crocodiles eradicate the weak, sick, and injured wildlife, leaving only the healthy to prosper.

Year by year, more and more of the world gets disenchanted. Even the icy privacy of the arctic and antarctic circles is invaded. We have played Jack Horner with our earth, till there is never a plum left in it.

Pines a thousand years old. Every year they must go farther for them: they recede, like beavers and Indians, before the white man.

Because the global ecosystem is a connected whole, in which nothing can be gained or lost and which is not subject to over-all improvement, anything extracted from it by human effort must be replaced. Payment of this price cannot be avoided; it can only be delayed. The present environmental crisis is a warning that we have delayed nearly too long.

On my 70th birthday, I was asked how I felt about mankind's prospects. This is my reply: We are behaving like yeasts in a brewer's vat, multiplying mindlessly while greedily consuming the substance of a finite world. If we continue to imitate the yeasts, we will perish as they perish, having exhausted our resources and poisoned ourselves in the lethal brew of our own wastes. Unlike the yeasts, we have a choice. What will it be?

The primordial blessing, 'increase and multiply', has suddenly become a hemorrhage of terror. We are numbered in billions, and massed together, marshalled, numbered, marched here and there, taxed, drilled, armed, worked to the point of insensibility, dazed by information, drugged by entertainment, surfeited with everything, nauseated with the human race and with ourselves, nauseated with life.

In any race between human numbers and natural resources, time is against us.

Overconsumption and overpopulation underlie every environmental problem we face today