Toward the end of the last ice age, about 19,000 years ago, the sea rose in several large spurts, according to a new study of coral reefs that grew during this period.
This contradicts assumptions that sea level rises gradually. Instead, coral fossils show sudden inundations followed by quieter periods. This offers new information that supports the theory that glaciers and ice sheets have “tipping points” that cause their sudden collapse along with a sudden increase in sea level.
I've talked about sea levels before. But this new study revises the opinions of scientists that this increase will likely be gradual. But the historical analysis of coral reefs suggests that the sea level may rise abruptly. And there are scientists who believe that Greenland may be at or past its tipping point. We might see a dramatic increase in sea level in the next few years.