Global sea level rose faster in the 20th century than in any of the 27 previous centuries, a new analysis shows.

And scientists say without climate change, global sea level would have risen by less than half the observed 20th century increase and might even have fallen....

The Kopp-led study also found that it’s very likely that global sea level will rise by 1.7 to 4.3 feet in the 21st century if the world continues to rely heavily upon fossil fuels. Phasing out fossil fuels will reduce the very likely rise to between 0.8 and 2.0 feet.