Do You Have That Sinking Feeling?

摘要

Natural sinkholes are a major challenge for the nearly 20 million people in Florida, given the state's high water table and porous limestone below the sandy surface. Winter Park, an Orlando suburb, is famous for the May 1981 sinkhole that swallowed an Olympic-sized swimming pool and an entire car dealership-which caused no deaths but did make it into the record books as the largest sinkhole event that resulted from natural geological conditions.