https://www.pbs.org/newshour/science/arctic-sea-ice-shrank-to-tie-its-lowest-winter-level-as-unprecedented-heat-shatters-records-globally

"…when there's less white ice reflecting the strong summer sun, the oceans can absorb more heat. And when that happens, the Arctic warms closer to temperatures further south and atmospheric pressure changes. A leading theory…says those Arctic changes then alter the movement and shape of the jet stream, which moves weather west to east and contributes to extreme weather bursts," so National Snow and Ice Data Center's senior scientist Walt Meier.

Arctic sea ice shrank to tie its lowest winter level as unprecedented heat shatters records globally

Vital Arctic sea ice shrank to tie its lowest measured level for the winter, the season when ice grows, as a warming Earth shattered records across the continents.

PBS News