If greenhouse gas emissions remain high, that is, if we basically don't find technologies to mitigate them or to amend their effects, the global average sea level could increase by almost 2.4 meters by 2100 and 15.2 by 2300.
The rise in sea level varies by location and time, and scientists have developed a series of methods to reconstruct past changes and project futures into a new study.
In the study, published in Annual Review of Environment and Resources, it is stated that sea level rises will be more moderate if we emit less greenhouse gases.
Specifically, the data is 42 to 85 centimeters more for 2100, 85 to 164 centimeters more for 2150 and two to 4.2 meters for 2300.
Given the 11% of the 7.6 billion human beings live in areas less than 11 meters above sea level, the rising seas represent a great risk to coastal populations, economies, infrastructure and ecosystems around the world.
As explained by the study co-author Robert E. Kopp, Professor in the Department of Earth and Planetary Sciences at the University of Rutgers-New Brunswick:
Much is known about the change in sea level in the past and in the future, and much more is uncertain. But uncertainty is not a reason to ignore the challenge. Characterizing carefully what is known and what is uncertain is crucial to manage the risks that rising sea levels represent for the world's coasts.