Nearly 40 percent of the world's total glacier mass is now doomed to melt even if global temperatures were to stop rising immediately, a new study warns.

Researchers estimate that these ice floes could lose 39 percent of their mass by 2020, a trend that is already irreversible, which would contribute to a 113 millimeter rise in global sea levels.

An article published in the journal Science noted that the loss increases to 76 percent if the world continues with its current climate policies, which would make it unlikely to keep global warming below 1.5 degrees Celsius.

Although the study offers a bleak outlook for the world's glaciers, its authors attempt to offer "a message of hope," said Lilian Schuster, a researcher at the University of Innsbruck in Austria who co-led the research.

"We want to show that with every tenth of a degree less global warming, we can preserve glacier ice," she told CNN.

In 2015, almost the entire international community pledged to collaborate on the Paris Agreement to keep global warming below 2.0 degrees C compared to pre-industrial levels and, if possible, limit the increase to 1.5 degrees.

The United States withdrew from the Paris Agreement twice: in 2020, during Donald Trump's first presidency, a decision that Joe Biden reversed when he took office in January 2021, but returned to the starting point with the Republican's return to power on January 20.

This time, the United States' withdrawal from the pact will take effect in 2026.