A new report says traffic in the U.S. is worse than it's been in years. But some say there are reasons to be optimistic. For this month's Environmental Outlook: How revitalized urban centers and new modes of transportation are changing how we get around our cities.
Municipalities in many coastal areas have embraced beach "nourishment" programs to fight the erosion of their coastlines. A panel talks about beach erosion: what causes it, how and why communities try to prevent it, and who pays for recovery measures.
- Howard Marlowe of the American Shore and Beach Preservation Association
- Prof. Orrin Polkey director of the Program for the Study of Developed Shorelines at Duke University
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