Sea level rose more in the 20th century than the previous 27
A new study closely examined sea level rise on a global basis and discovered that the last century saw alarming rises that were unprecedented in history.
According to the Proceedings of the National Academy of Sciences (PNAS), global sea-level acceleration began to take place in the 19th century, but it was the 20th century that experienced an alarming rise in the level of the seas.
In fact, the global sea level rose more in the 20th century than in any of the previous 27 centuries.
— Climate Central (@ClimateCentral) February 23, 2016
Connection to global warming
According to the PNAS study, there is a clear connection between global warming and the rising seas that the Earth has seen in recent decades.
Without the effects of global warming, the study noted, modeling indicates a potential sea-level rise between −3 cm and +7 cm in the 20th century. This is a stark contrast to the actual +14 cm rise that actually took place.
Worst is yet to come
Even with the Paris Agreement from late 2015 in place, the global sea level may rise a minimum of 9 inches this century, the study noted. And the maximum? That highest sea level rise expected this century is two feet. Any rise in that range of 9 to 24 inches could cause massive flooding issues around the globe.