I am not a scientist; just a layman. From my uneducated perspective these declining sea ice numbers appear alarming. Is this a short term blip (less than 100 years) or, factoring in feedback loops, we looking at the possibility of an ice free summer arctic in the next 50 years?
"Ice-free" in climate content, by convention, means see ice extent of less than 1 million km². Some ice will persist near the northern Canadian Island for longer. I use "ice-free" to mean something like: you can take your sailboat and go from Alaska to Svalbard via the North Pole. Given the warming already in the oceans, and "ice-free" late summer in the Arctic is a near-certainty within the next 50 years. Also, for an overview of the role of inflow of warmer waters plays in the Arctic, check out the "Atlantification" essay in the just released 2025 Arctic Report Card.
Ah- NM, I found it in the Danish report.
Also, Zach Labe has quite a few ice thickness/volume graphics here:
https://zacklabe.com/arctic-sea-ice-volumethickness/
I am not a scientist; just a layman. From my uneducated perspective these declining sea ice numbers appear alarming. Is this a short term blip (less than 100 years) or, factoring in feedback loops, we looking at the possibility of an ice free summer arctic in the next 50 years?
"Ice-free" in climate content, by convention, means see ice extent of less than 1 million km². Some ice will persist near the northern Canadian Island for longer. I use "ice-free" to mean something like: you can take your sailboat and go from Alaska to Svalbard via the North Pole. Given the warming already in the oceans, and "ice-free" late summer in the Arctic is a near-certainty within the next 50 years. Also, for an overview of the role of inflow of warmer waters plays in the Arctic, check out the "Atlantification" essay in the just released 2025 Arctic Report Card.
Probably pushing the data limitations, but is there a graphic for sea ice volume vs. time?