I think Captain Cousteau might be the father of the environmental movement.

We could have saved the Earth but we were too damned cheap.

Every drop in the ocean counts.

The environment is everything that isn't me.

Plans to protect air and water, wilderness and wildlife are in fact plans to protect man.

Unless we keep this planet healthy, everything else is for naught.

The most important thing about global warming is this. Whether humans are responsible for the bulk of climate change is going to be left to the scientists, but it's all of our responsibility to leave this planet in better shape for the future generations than we found it.

In a few decades, the relationship between the environment, resources and conflict may seem almost as obvious as the connection we see today between human rights, democracy and peace.

The time is right for electric cars - in fact the time is critical.

Climate change is happening, humans are causing it, and I think this is perhaps the most serious environmental issue facing us.

I think the future for solar energy is bright.

People blame their environment. There is only one person to blame - and only one - themselves.

Nuclear power will help provide the electricity that our growing economy needs without increasing emissions. This is truly an environmentally responsible source of energy.

Not all is doom and gloom. We are beginning to understand the natural world and are gaining a reverence for life - all life.

A true conservationist is a man who knows that the world is not given by his fathers, but borrowed from his children.

I think the environment should be put in the category of our national security. Defense of our resources is just as important as defense abroad. Otherwise what is there to defend?

Thank God men cannot fly, and lay waste the sky as well as the earth.

Environmental policy must strike a balance between the earth's best interests and our citizen's pressing needs.

You will die but the carbon will not; its career does not end with you. It will return to the soil, and there a plant may take it up again in time, sending it once more on a cycle of plant and animal life.

Keep close to Nature's heart... and break clear away, once in awhile, and climb a mountain or spend a week in the woods. Wash your spirit clean.

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.

If we bestow but a very little attention to the economy of the animal creation, we shall find manifest examples of premeditation, perseverance, resolution, and consumate artifice, in order to effect their purpose.

We live in a world bathed in 5,000 times more energy than we consume as a species in the year, in the form of solar energy. It's just not in usable form yet.

We need to accept the seemingly obvious fact that a toxic environment can make people sick and that no amount of medical intervention can protect us. The health care community must become a powerful political lobby for environmental policy and legislation.

I think the government has to reposition environment on top of their national and international priorities.

In the environmental movement, every time you lose a battle it's for good, but our victories always seem to be temporary and we keep fighting them over and over again.

When we try to pick out anything by itself, we find it hitched to everything else in the universe.

I did not become a vegetarian for my health, I did it for the health of the chickens.

We learned that economic growth and environmental protection can and should go hand in hand.

You may be able to fool the voters, but not the atmosphere.

Destroying rainforest for economic gain is like burning a Renaissance painting to cook a meal.

Mankind has probably done more damage to the Earth in the 20th century than in all of previous human history.

Every creature is better alive than dead, men and moose and pine trees, and he who understands it aright will rather preserve its life than destroy it.

If we're destroying our trees and destroying our environment and hurting animals and hurting one another and all that stuff, there's got to be a very powerful energy to fight that. I think we need more love in the world. We need more kindness, more compassion, more joy, more laughter. I definitely want to contribute to that.

Natural gas is a better transportation fuel than gasoline, so if that's the case, it's cheaper, it's cleaner and it's a domestic resource.

I'm very concerned for the future of the earth and its amazing creatures. We've got to be careful and make sure we don't foul our own nest.

Environmental concern is now firmly embedded in public life: in education, medicine and law; in journalism, literature and art.

Much of the debate over global warming is predicated on fear, rather than science.

We are using resources as if we had two planets, not one. There can be no 'plan B' because there is no 'planet B.'

I really believe in the environmental movement right now - it only takes a little effort to make a big difference.

Sooner or later, we will have to recognise that the Earth has rights, too, to live without pollution. What mankind must know is that human beings cannot live without Mother Earth, but the planet can live without humans.

Conservation is a state of harmony between men and land.

Water and air, the two essential fluids on which all life depends, have become global garbage cans.

The Earth does not belong to us: we belong to the Earth.

We are aware only of the empty space in the forest, which only yesterday was filled with trees.

Climate change is a terrible problem, and it absolutely needs to be solved. It deserves to be a huge priority.

People need to be cautious because anything built by man can be destroyed by Mother Nature.

We have enslaved the rest of the animal creation, and have treated our distant cousins in fur and feathers so badly that beyond doubt, if they were able to formulate a religion, they would depict the Devil in human form.

I see humanity now as one vast plant, needing for its highest fulfillment only love, the natural blessings of the great outdoors, and intelligent crossing and selection.

Sadly, it's much easier to create a desert than a forest.

Mother Nature is not sweet.

It's coming home to roost over the next 50 years or so. It's not just climate change; it's sheer space, places to grow food for this enormous horde. Either we limit our population growth or the natural world will do it for us, and the natural world is doing it for us right now.

All is connected... no one thing can change by itself.

Never doubt that a small group of thoughtful, committed citizens can change the world; indeed, it's the only thing that ever has.

There is a muscular energy in sunlight corresponding to the spiritual energy of wind.

Nevertheless, there is another threat on the horizon. I see this threat in environmentalism which is becoming a new dominant ideology, if not a religion. Its main weapon is raising the alarm and predicting the human life endangering climate change based on man-made global warming.

The Endangered Species Act is the strongest and most effective tool we have to repair the environmental harm that is causing a species to decline.

After all, sustainability means running the global environment - Earth Inc. - like a corporation: with depreciation, amortization and maintenance accounts. In other words, keeping the asset whole, rather than undermining your natural capital.

Take air quality in the United States today: It's about 30 percent better than it was 25 years ago, even though there are now more people driving more cars.

Birds are indicators of the environment. If they are in trouble, we know we'll soon be in trouble.

Liberals in Congress have spent the past three decades pandering to environmental extremists. The policies they have put in place are in large part responsible for the energy crunch we are seeing today. We have not built a refinery in this country for 30 years.

I think the cost of energy will come down when we make this transition to renewable energy.

Moral codes adjust themselves to environmental conditions.

If we don't continue to pursue alternative, emissions-free energy sources like nuclear fuel, we are at risk of increasing our dependence on costly natural gas.

The quicker we humans learn that saving open space and wildlife is critical to our welfare and quality of life, maybe we'll start thinking of doing something about it.

The only way forward, if we are going to improve the quality of the environment, is to get everybody involved.

They claim this mother of ours, the Earth, for their own use, and fence their neighbors away from her, and deface her with their buildings and their refuse.

Nature is the mother and the habitat of man, even if sometimes a stepmother and an unfriendly home.

If we gave up eating beef we would have roughly 20 to 30 times more land for food than we have now.

Public discourse has been polluted now for decades by corporate-funded disinformation - not just with climate change but with a host of health, environmental and societal threats. The implications for the planet are grim.

Maintaining healthy forests is essential to those who make a living from the land and for those of us who use them for recreational purposes.

Raising awareness on the most pressing environmental issues of our time is more important than ever.

No one is an environmentalist by birth. It is only your path, your life, your travels that awaken you.

Never doubt that a small group of thoughtful, committed citizens can change the world; indeed, it's the only thing that ever has.

We won't have a society if we destroy the environment.

It seems that every time mankind is given a lot of energy, we go out and wreck something with it.

Saving our planet, lifting people out of poverty, advancing economic growth... these are one and the same fight. We must connect the dots between climate change, water scarcity, energy shortages, global health, food security and women's empowerment. Solutions to one problem must be solutions for all.

There are plenty of problems in the world, and doubtless climate change - or whatever the currently voguish phrase for it all is - certainly is one of them. But it's low on my list.

Try to leave the Earth a better place than when you arrived.

We don't have to sacrifice a strong economy for a healthy environment.

Just as modern mass production requires the standardization of commodities, so the social process requires standardization of man, and this standardization is called equality.

I do believe very strongly that all of us and all of the other things in the context of our planet with Mother Nature, all of these things absolutely have a profound effect.

We're running the most dangerous experiment in history right now, which is to see how much carbon dioxide the atmosphere... can handle before there is an environmental catastrophe.

If you can't be in awe of Mother Nature, there's something wrong with you.

We may achieve climate, but weather is thrust upon us.

As you heat the planet up, it's just like boiling a pot.

Without the oceans there would be no life on Earth.

I can find God in nature, in animals, in birds and the environment.

The environment has fallen to the wayside in politics.

We have no reason to think that climate change is harmful if you look at the world as a whole. Most places, in fact, are better off being warmer than being colder. And historically, the really bad times for the environment and for people have been the cold periods rather than the warm periods.

The government should set a goal for a clean environment but not mandate how that goal should be implemented.

The future will either be green or not at all.

No one should be able to enter a wilderness by mechanical means.

It is horrifying that we have to fight our own government to save the environment.

By polluting clear water with slime you will never find good drinking water.

Biofuels such as ethanol require enormous amounts of cropland and end up displacing either food crops or natural wilderness, neither of which is good.

Nature is regulating our climate for free. Mother Nature, she's been doing that for free, for a long, long time. Now do you really want to get in there and do geo-engineering and all this kind of stuff?

Environmental pollution is an incurable disease. It can only be prevented.

Energy conservation is the foundation of energy independence.

Why has it seemed that the only way to protect the environment is with heavy-handed government regulation?