The videos of these planes are all over Twitter. Here is a screenshot from one of the videos and you can see it is completely covered in snow and ice and frozen to the ground. When I looked at the weather map, I could see quite a bit of snow in Western Europe where the planes were coming from.
60,000 years ago, the North American continent became populated after global warming flooded the Bering Strait, which had previously been fertile land sustaining a sizable population. Only after the glaciers receded in what is now Canada and the United States were the first humans able to inhabit the continent. There are also signs of a previous population of people having lived in North America during an earlier period of global warming. Do you think someone left their car running too long?