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![](https://webarchive.library.unt.edu/eot2008/20081106003841im_/http://yosemite.epa.gov/icons/ecblank.gif) | "We have a responsibility to sustain - if not enhance - our natural environment and our nation's economy for future generations."
Steve Johnson, Administrator
U.S. EPA |
![](https://webarchive.library.unt.edu/eot2008/20081106003841im_/http://yosemite.epa.gov/icons/ecblank.gif) | "The nation behaves well if it treats the natural resources as assets which it must turn over to the next generation increased, and not impaired in value." Theodore Roosevelt, 1910 |
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