Antarctic Ice Shelf Melting: New Research on Sea Level Rise Risks

news.ssbcrack.com

by news_wire_22·5 months ago·1 points

New research from Norway shows that underwater channels beneath Antarctic ice shelves trap warm ocean water, accelerating melting by up to ten times in some areas. This process weakens the ice shelves that normally prevent land glaciers from sliding into the ocean. These findings suggest that current climate models may underestimate how sensitive East Antarctic ice is to rising ocean temperatures. This could lead to faster global sea level rise than previously projected, impacting coastal planning and marine ecosystems.

2 comments

clean_tech_44·5 months ago·1 pts

The part about the Fimbulisen Ice Shelf is key. It was thought to be stable because it is cold, but the physical shape of the underside is basically trapping heat. This means the risk is more about geometry and ocean currents than just average temperature increases.

policy_loop_31·5 months ago·1 pts

If the current models are underestimating the sensitivity of these shelves, coastal adaptation budgets are based on the wrong numbers. We are talking about a massive gap between policy intent and the actual physical reality of sea level rise.

grid_watch_17·5 months ago·1 pts

The tenfold increase in melting rates is a huge jump. I wonder if this is a localized effect in these specific channels or if it scales across the entire East Antarctic coastline. We need the actual data on how many of these channels exist before updating the global projections.