Climate scientists studying the Earth’s sea levels have determined that it was “extremely likely” those waters rose more rapidly in the 20th century than any other century in nearly 3,000 years.

Human-induced climate change contributed to the increase, the scientists wrote in Monday’s edition of the Proceedings of the National Academy of Sciences of the United States of America.

The research team found sea levels rose 14 centimeters (5.5 inches) in the 20th century, and its models suggest those numbers may have been different without the effects of climate change.

Without it, the team wrote it was “very likely” that seas would have seen a change that ranged from a 3 centimeter (a little more than an inch) drop to a 7 centimeter (2.75 inch) increase.

The study’s lead author was Bob Kopp, a climate scientist from Rutgers University.

In a message on his website, Kopp wrote that he and his colleagues concluded “with 95 percent probability” that the levels rose more rapidly last century than any other century since 800 B.C.

The study’s cutoff, which stretches back 28 centuries, “is not because the rate of global sea-level rise was probably faster before then,” Kopp wrote on his website, “but simply that the reconstruction quality isn’t good enough before then to have the same level of confidence.”

NASA says the global average sea level has risen another 6 centimeters since January 2000 and is currently rising at a rate of .4 millimeters every year. The agency says the increases are “a direct result of a changing climate,” as melting ice sheets and glaciers fuel the expansion.

Kopp wrote last century wasn’t the only time when global temperatures and sea levels moved together, pointing to a 400-year stretch from the 11th to 15th centuries. Temperatures fell about .2 degrees Celsius during that stretch, while sea levels dipped approximately 8 centimeters.

But the study found it was “very likely” that global sea levels have risen “over every 40-year interval since 1860,” as societies became more industrialized.

In December, 195 countries agreed to a landmark climate change pact that aims to reduce greenhouse gas emissions and prevent temperatures from reaching 2 degrees Celsius above their pre-industrial averages, a long-feared threshold.

But Kopp’s team warned that even with “extremely strong emissions abatement,” their models suggest seas could rise another 24 to 61 centimeters (9 to 24 inches) during the 21st century.

If emissions were to continue at “business-as-usual” levels this century, the research team said that sea levels could potentially rise between 52 and 131 centimeters (20 to 51 inches).