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Walter Priest, a NOAA biologist and working with the Elizabeth River Project, designed the wetland restoration taking place at Money Point in Norfolk, Virginia. Nearly a hundred years of creosote pollution - the chemical used to preserve wood pilings and railroad ties - has left the Elizaeth River in need of severe repair. Nearly 50-60 percent of mummichog tested in this area show signs of being pre-cancerous, while about 20 percent test positive for full-blown cancer. (Photo/Morgan Heim)