In 1936, F.G. Hall, named various types of open wells found in the Yucatan; i.e. Cenotes-cántaro: Jug, or Pit cenotes have a surface connection much smaller than the diameter of the body of water below; Cenotes-cilíndricos: Cylinder cenotes have vertical walls; Cenotes-aguadas: Basin cenotes only have shallow water while grutas: Cave cenotes usually have a horizontal entrance with liveable areas around pools of clear water filtered through the cave ceilings. 
As the acidity of the waters continued to grow, rain became scarce on the mainland, especially the Florida peninsula. Scientists found that certain chemicals could expand clouds so that they could produce rain. Vapor trails covered the skies when rain was scarce. And abundant rains fell, somewhere else!
However, since clouds are driven by the air currents, the rains seldom fell where the vapor trails were first seen. Has anyone noticed that Texas had 100 days with temperatures over 100° during one summer without rain? Or was it only 99 days? Does it matter?
". . . a sinkhole – a hazard [now] so common in Florida that state law [now] requires home insurers to provide coverage against the danger.. ."
"Acidic rain can, over time, eat away the limestone and natural caverns that lie under much of the state, causing sinkholes. Both extremely dry weather and very wet weather can trigger sinkholes, [an investigator] said ."
More than 500 sinkholes have been reported in Hillsborough County alone since the government started keeping track in 1954, according to the state's environmental agency..,"and
Mother Earth is crying and no one is listening. Does not anyone ask why? Does anyone really care? If the Sky, the Ocean and the Land are all in trouble, what are we doing wrong? Why is Florida turning into a slab of Swiss Cheese?