If the Genesis Flood really occurred, what evidence would we look for? We read in Genesis 7 and 8 that “the fountains of the great deep” were broken up and poured out water from inside the earth for 150 days (5 months). Plus, it rained torrentially and globally for 40 days and nights. (“The floodgates [or windows] of heaven were opened.”) No wonder all the high hills and the mountains were covered, meaning the earth was covered by a global ocean. (“The world that then was, being overflowed with water, perished,” 2 Peter 3:6.) All air-breathing life on the land was swept away and perished.
Was there an ice age? In most public schools, students are taught that there have been at least five major ice ages in Earth’s multi-billion-year history. The last one is claimed to have started 2.58 million years ago, and then retreated about 10,000 years ago. Obviously, this timescale is incompatible with biblical history. Nonetheless, there is scientific evidence for one ice age that occurred within the biblical timescale. The real ice age occurred shortly after the global flood and lasted a few hundred years.