Our work on light bulbs wasn't an arbitrary mandate. We didn't just pick a standard out of the air or look for a catchy sounding standard like 25 by 2025 not based in science or feasibility. Instead we worked with both industry and environmental groups to come up with a standard that made sense and was doable.

New Zealand needs to balance its environmental responsibilities with its economic opportunities because the risk is that if you don't do that - and you want to lead the world - then you might end up getting unintended consequences.

Federal elections happen every two years in this country. Presidential elections every four years. And four years just isn't long enough to dismantle all the environmental laws we've got in this country.

I decided that now is the time to start doing the things that really interest me and I find important. It was in the 10 years of the MacArthur grant that I began working on my first book... and I began putting more work into environmental history.

These days most nature photographers are deeply committed to the environmental message.

There is no question that photography has played a major role in the environmental movement.

What I have experienced over time is that environmental problems are easier to deal with in ways that don't go into their interconnections to the rest of what we are.

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

The environmental crisis is a global problem and only global action will resolve it.

The wave of new productive enterprises would provide opportunities to remedy the unjust distribution of environmental hazards among economic classes and racial and ethnic communities.

Environmental quality was drastically improved while economic activity grew by the simple expedient of removing lead from gasoline - which prevented it from entering the environment.

By adopting the control strategy the nation's environmental program has created a built-in antagonism between environmental quality and economic growth.

In every case the environmental hazards were made known only by independent scientists who were often bitterly opposed by the corporations responsible for the hazards.

My entry into the environmental arena was through the issue that so dramatically - and destructively - demonstrates the link between science and social action: nuclear weapons.

I'd say that animal rights and environmental issues have always been at the forefront of my mind.

There are nuclear weapons in China Iran Korea and Pakistan. It wouldn't take much to send a couple of warheads off on this planet somewhere that would cause a lot of environmental damage then if you have got someone who wants to retaliate you have real problems.

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.