Find the Perfect Quote | Explore Our Curated Categories for Every Occasion

Mark Ruffalo, aka the Incredible Hulk, is the natural gas industry's worst nightmare: a serious, committed activist who is determined to use his star power as a superhero in the hottest movie of the moment to draw attention the environmental and public health risks of fracking.

Have we failed to slow global warming pollution in part because climate and environmental activists have been too polite and well behaved?

In this country, the health concerns and the environmental concerns are as deep as in Europe. All the surveys show that. But here, we did not have the cultural dimension. This is a fast-food culture.

The position I took at the time was that we hadn't really examined any of the potential environmental consequences of introducing genetically modified organisms.

The industrial processes in use today were developed at a time when no one had to consider what the environmental impact was. Who cared? But making ecological concerns matter to a company's bottom line will help it do the research and development that will reinvent everything we buy.

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

At every turn, when humanity is asked the question, Do you want temporary economic gain or long-term environmental loss, which one do you prefer, we invariably choose the money.

A shift is necessary toward lifestyles less geared to environmental damaging consumption patterns.

I am on the board of corporations who contribute both to environmental problems and their solutions. And I am on the NGO side: the Earth Council and other organizations.

I have developed a huge regard for Toyota for its environmental awareness, for its immense commitment to research and development in this field, and for its leadership in developing hybrids which others are now following.

One of the things that I have always thought I would like to do is to develop an environmental index. Then people can measure their own environmental performance on an index as they do in other ways.

Ted Turner is still a leader. And he sets a great example. His ability financially has been reduced, but his influence and his example still is an important asset to the whole environmental movement.

Why should we not expect self-designated environmental leaders to practice what they preach?

I am a latecomer to the environmental issue, which for years seemed to me like an excuse for more government regulation. But I can see that in rich societies, voters are paying less attention to economic issues and more to issues of the spirit, including the environment.

Civilization has given us enormous successes: going to the moon, technology. But then this is the civilisation that took us to debt, environmental crisis, every single crisis. We need a civilization where we say goodbye to these things.

To be clear, climate change is a true 800 pound gorilla in the room. The effects of global warming threaten global environmental upheaval over the coming century. But for South Florida and the Everglades, it could be our death knell if urgent action is not taken.

You cannot achieve environmental security and human development without addressing the basic issues of health and nutrition.

I do not think it is too hippie to want to clean up the planet so you do not wind up dying of some kind of cancer when you are 45 years old. It enrages me that these big cancer-research organizations can not be bothered to man the front lines of environmental protest.

The environmental benefits of hydrogen are also outstanding. When used as an energy source, hydrogen produces no emissions besides water. Zero polluting emissions, an amazing advance over the current sources of energy that we use.

Hydrogen holds great promise to meet many of our future energy needs, and it addresses national security and our environmental concerns. Hydrogen is the simplest, most abundant element in the universe.