Yet another study has shown that glaciers in Antarctica are melting at accelerating rates.

Almost 25 percent of the West Antarctic ice shelf is now thinning, and the Pine Island and Thwaites glaciers are losing ice at five times the rate they were in the early 1990s, CNN reported.

"In parts of Antarctica, the ice sheet has thinned by extraordinary amounts," study lead author and Leeds University Prof. Andy Shepherd told The Guardian.

The study, published in Geophysical Research Letters, comes four months after another study of the entire Antarctic continent found that it was losing ice at six times the rate it was 40 years ago. The latest study found that ice loss from both East and West Antarctica had raised global sea levels by 4.6 millimeters since 1992, according to CNN. The study relied on 25 years of satellite data covering 1992 to 2017. The satellites were fitted with altimeters to measure height changes to the ice sheets. Researchers then used weather models to separate seasonal variation due to snow fall from melting and ice loss caused by long term climate change, BBC News explained. "Using this unique dataset, we've been able to identify the parts of Antarctica that are undergoing rapid, sustained thinning―regions that are changing faster than we would expect due to normal weather patterns," co-head of the UK Centre for Polar Observation and Modelling (CPOM) and Lancaster University Environmental Sensing Reader Dr. Malcolm McMillan told BBC News. "We can now clearly see how these regions have expanded through time, spreading inland across some of the most vulnerable parts of West Antarctica, which is critical for understanding the ice sheet's contribution to global sea level rise."