Ron Brackett for the Weather Channel writes:
The effects of rising sea levels, such as nuisance flooding, are pretty obvious above ground.
But lying just below the surface is a threat that could impact millions of people, especially those living along the country's coasts.
Higher sea levels threaten the systems that carry wastewater away from more than one in five households in the United States, according to the U.S. Environmental Protection Agency.
Read full article here.