Carl Sagan Quotes

The truth is: the natural world is changing. And we are totally dependent on that world. It provides our food, water and air. It is the most precious thing we have and we need to defend it.

Right now, our mother -- our mother -- all of our mothers, Mother Earth is hurting. And she needs a generation of thoughtful, caring and active kids like all of you to protect her for the future. You can help us win the battle to clean up our air, our water, our land, to protect our forests, our oceans and our wildlife.

Perseverance is my biggest lesson. When I started to get involved in environmental protection some years ago, my people did not take it seriously and they never considered it important. But today, people look at what I do and they truly recognize those efforts, and eventually they join you as "environmental activists" too!

Saving our planet requires you to be ambitious in what you aim, and, equally, in how hard you work to reach your goal.

What's happening with the planet's climate right now needs to be a wake-up call to all of us, meaning all heads of state, all heads of social organizations, in order to take a more energetic approach to countering the global changes to the climate.

Faced with the widespread destruction of the environment, people everywhere are coming to understand that we cannot continue to use the goods of the earth as we have in the past ... [A] new ecological awareness is beginning to emerge which rather than being downplayed, ought to be encouraged to develop into concrete programs and initiatives.

Protecting our land, our air and our water is a very important thing that we can only do together.

Well, perhaps the greatest achievement, and we didn't know it at the time, was we held an Earth Day in 1970, and out of that Earth Day a lot of students got involved in saving the environment, or trying to.

I began working with the John Muir Institute and then started helping found Friends of the Earth organizations here and there in other countries. That pretty well brings us up to the present.

We only have this one planet; we got to figure out how to live on it without destroying it.

A second key area where you are called to make a contribution is in showing concern for the environment. This is not only because this country, more than many others, is likely to be seriously affected by climate change. You are called to care for Creation not only as responsible citizens, but also as followers of Christ!

If you're asking me do we want clean air and clean water? Yes. Do we want a safer climate for future generations of the world? Of course we want that. We're working super hard here in Trump Tower to make sure that happens.

The 1970s must be the years when America pays its debt to the past by reclaiming the purity of its air, its waters, and our living environment. It is literally now or never.

Development requires modification and transformation of the environment... the planet's capacity to support its people us being irreversibly reduced by the destruction and degradation of the biosphere and the need to understand the problem and take corrective action is becoming urgent.

I don't know how you can live on the planet and not care about the environment. It's our globe, we share it.

I love raising awareness and encouraging people to take action for World Environment Day, because it demonstrates how individual voices can become a global chorus for change.

It is a wonderful honor to receive the Audubon Medal from the National Audubon Society, which for more than a century has fought tirelessly to protect and preserve our natural resources and environment for future generations.

This Earth is our only home. Together, we must protect and cherish it.

So often we talk about saving the planet, but what we really mean is to save the planet the way it is, so we can live here. So that is can sustain us.

You can only get really unpopular decisions through if the electorate is convinced of the value of the environment. That's what natural history programmes should be for.

Every once in a while, I get mad. 'The Lorax' came out of my being angry. The ecology books I'd read were dull... In 'The Lorax,' I was out to attack what I think are evil things and let the chips fall where they might.

When we save the rain forest, the polar bear, and Al Gore, we should party so hard that Canada calls the cops on us for noise.

One Earth, one mother - one does not sell the Earth.

The most important environmental issue is one that is rarely mentioned, and that is the lack of a conservation ethic in our culture.

The earth is a tremendous gift. There is nothing else like it in the known universe. I want to leave it the way I found it.