The fact that Greenland is losing 20% more ice than expected is important because it shows climate change is happening faster than we thought. It helps scientists make better predictions and shows we might need to take quicker action to deal with climate change.
The information you've mentioned about Greenland losing 20% more ice than researchers had anticipated, and the potential warming effect on the ocean, underscores the critical impact of climate change on our planet's cryosphere and its broader environmental consequences. The mention of The Nature Journal as a source adds credibility to the findings, given its reputation for publishing high-quality scientific research. This is a great factcheck.