Time, water, and geologic forces have converged to create underwater sinkholes where oxygen-poor and sulfur-rich groundwater support prolific microbial mats resembling life on early Earth.

Increased use of groundwater caused the ground to sink (subsidence) around Konya, Turkey, leading to this sinkhole in 2019. Sudden, large collapse of sinkholes are relatively rare. Sinkholes can ...

failing farms and giant sinkholes opening up in the ground we live on," John Sabo, director of the ByWater Institute at Tulane University, wrote for Forbes. Groundwater aquifers suffer from a lack ...

Authorities suspect that the missing grandmother from Pennsylvania might have fallen into a newly formed sinkhole. The suspicion arose after authorities at the scene found Elizabeth Pollard's car ...

Sinkholes, deep depressions in the ground that open up when layers of certain types of rock dissolve beneath the surface and collapse, usually form over time by a phenomenon in which groundwater ...

An curved arrow pointing right. A cenote is a natural sinkhole filled with groundwater. This one, Cenote Ik Kil in Mexico's Yucatan Peninsula, is about 90 feet below ground level — and the water ...

Climate change and uncontrolled groundwater usage are exacerbating the sinkhole threat in Turkey's "breadbasket." Farmland and residential areas are at risk, and experts warn that a major food crisis ...