An curved arrow pointing right. A brilliant new creation is helping one of the best preserved places in the world. Yellowstone National Park has begun to use porous, or thirsty, concrete in walkways ...

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The Center for American Progress is an independent nonpartisan policy institute that is dedicated to improving the lives of all Americans through bold, progressive ideas, as well as strong leadership ...

With Hurricane Joaquin bearing down on the East Coast and as many as a dozen states preparing for emergency conditions, fears of flooding especially in major coastal cities are on everyone's mind. UK ...