Please check out
https://agupubs.onlinelibrary.wiley.com/doi/epdf/10.1029/2021GL097595
about the alarming increase in the rate of loss of multi-year ice in the Arctic.
Key Points:
Stephen Salter
Emeritus Professor of Engineering Design
School of Engineering
Mayfield Road
Edinburgh EH9 3DW
0131 650 5704
https://www.youtube.com/watch?v=o-0h14RFq4M&t=155s
https://www.youtube.com/watch?v=0BBVTStBrhw
https://www.youtube.com/watch?v=ZBB6WtH_Ni8