Greenland glacier melt could accelerate sea level rise, study warns.

A major glacier in northwest Greenland is melting away with the tide, resulting in previously unaccounted-for melting and potentially faster sea level rise. Observations from the Petermann Glacier revealed that the glacier’s grounding line can shift significantly as tides come in and out each day. This introduces another major source of melting that could be accelerating sea level rise. The phenomenon could worsen in the coming years and decades as ocean temperatures climb. Greenland’s melting ice is the single largest contributor to sea level rise, according to NASA, which has been accelerating in recent years.