Status update on the future of Greenland lakes
What is one of the biggest wildcards in how much the Greenland Ice Sheet will raise ocean levels in the coming centuries? Check out this post on SciWorthy.com featuring work on that question by our own Kristin Poinar and Ian Joughin. They analyzed satellite images and meteorological data across the western flank of the Greenland Ice Sheet and found that over time, meltwater has been collecting in more and more supraglacial lakes — lakes on the surface of the ice sheet that can potentially affect ice flow. However, their research also indicates that these lakes — like the ones shown here — are unlikely to create new moulins underneath them, and instead, will freeze over each winter rather than drastically affecting ice flow.
The post on SciWorthy.com has a much clearer summary with more details!