The climate is quite possibly changing, and the arctic will probably melt. But the climate has changed long before humans existed to be accused of changing it: volcanoes, solar activity, etc.
And even IF the libs were right about humans causing it, that wouldn’t mean it could be stopped by the West cutting emissions because China, India etc would be taking up the slack in more CO2.
IF the climate issues were to need to be dealt with, whether solar activity or human activity, the best money would be on geo-engineering, and planning for issues, like territorial disputes in an ice free north, etc. (Not on futilely cutting carbon emissions costing millions of American jobs)
“The climate is quite possibly changing, and the arctic will probably melt...”
Or not:
https://realclimatescience.com/2017/01/arctic-sea-ice-the-same-thickness-as-1940/