Environmental Protection Agency Administrator Gina McCarthy testifies at an oversight hearing of the Senate Environment and Public Works Committee on Capitol Hill in Washington on July 23. J. Scott Applewhite/AP hide caption

itoggle caption J. Scott Applewhite/AP

The Alabama gulf coast is heavily developed with condo and hotel properties. Now the state wants to use Gulf Coast restoration funds to build a new beach hotel and conference center. Debbie Elliott/NPR hide caption

itoggle caption Debbie Elliott/NPR

"Clouds are the most egalitarian of nature's displays 'cause we all have a great view of the sky" - Gavin Pretor-Pinney James Duncan Davidson/TED hide caption

itoggle caption James Duncan Davidson/TED

"I began to learn at least what other people felt and what they wanted to say before cutting them off with my own diatribe. I used to do that." - John Francis Andrew Heavens/TED hide caption

itoggle caption Andrew Heavens/TED

Environmentalist John Francis speaks about the 17 years of his life during which he never spoke a word. Andrew Heavens/Courtesy of TED hide caption

itoggle caption Andrew Heavens/Courtesy of TED

Pipes for Transcanada Corp.'s planned Keystone XL oil pipeline are stacked at a depot in Gascoyne, N.D. The House of Representatives approved the Keystone XL pipeline Friday; the Senate voted against it on Tuesday. Andrew Cullen/Reuters/Landov hide caption

itoggle caption Andrew Cullen/Reuters/Landov