Portions of Interstate 80 in Morris County have been closed for four months due to sinkholes. Timothy Bechtel, a senior professor of geosciences at Franklin & Marshall College, said precipitation ...

His body was never found. Bush was a victim of a sinkhole—a worldwide hazard that lurks wherever limestone and other water-soluble rocks underpin the soil. When carbon dioxide from the air ...

He has testified in federal courtrooms, and his command of the subject has helped to find buried human remains and weapons caches. “When sinkholes happen,” Bechtel said, “my phone starts ...