• "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." - Barry Commoner Tweet
• "A knowledgeable and courageous U.S. president could help enormously in leading the world's nations toward saving the climate." - Donella Meadows Tweet
• "Since the day he came into office, President Bush has worked to gut more than 34 years of hard work by weakening many of our Nation's standing environmental laws, some of which were signed into law by his father." - Jim Jeffords Tweet
• "These days, most nature photographers are deeply committed to the environmental message." - Galen Rowell Tweet
• "It is horrifying that we have to fight our own government to save the environment." - Ansel Adams Tweet
• "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." - Edward James Olmos Tweet
• "In the rich world, the environmental situation has improved dramatically. In the United States, the most important environmental indicator, particulate air pollution, has been cut by more than half since 1955, rivers and coastal waters have dramatically improved, and forests are increasing." - Bjorn Lomborg Tweet
• "Have we failed to slow global warming pollution in part because climate and environmental activists have been too polite and well behaved?" - Jeff Goodell Tweet
• "I tell my environmental friends that they have won. Every issue we look at from an energy perspective is now also looked at from an environmental perspective." - Joe Barton Tweet
• "Architects in the past have tended to concentrate their attention on the building as a static object. I believe dynamics are more important: the dynamics of people, their interaction with spaces and environmental condition." - John Portman Tweet