His main research interests are: Rapid climate events in the Quaternary with emphasis on the Gulf Coast, sea level reconstructions, coral reefs in tectonically active areas, microbial processes in sediments, modern and fossil submarine hydrocarbon seeps and vents and chemosymbiotic fauna, paleohydrology, molecular paleontology, applications of Radiocarbon, Sr and U-Series isotopes, geology and geochemistry of carbonates and evaporites. He conducted field investigations along the Red Sea, New Guinea, Australia, Southwest Pacific, Costa Rica, Austria, Gulf of Mexico and Italy. Dr. Aharon also conducted submersible dives on the Gulf of Mexico slope and deep basin with Johnson-Sea Link (1989, 1990, 1991, 1993, 1995, 1997) and Alvin (1990, 2000, 2001). His present interest is focused on studies of stalagmites from the Southern USA (e.g., De Soto Caverns) as archives of paleo-climate and paleo-rainfall.