Europe is not without tools to resist Donald Trump’s drive for Greenland. It could nobble American tech companies, review banking licences or sell Treasuries; the EU’s “anti-coercion instrument” could be invoked, allowing a range of other retaliations. But calibrating the response to such a mercurial and yet still-mighty president involves painful choices—and getting dozens of countries to agree makes it harder still.

If you’re feeling blue, maybe it’s the news. Or maybe it’s because today is “blue Monday”, allegedly the saddest day of the year (though the “science” here is dubious). But it might be your Spotify, too: popular music has been getting drearier.