
When the ecologist Anders Pape Møller began systematically driving two Danish roads in 1996 and counting the windshield splats, many people dismissed his project as a lark.

Now, we’re far more likely to watch those same landscapes pass by through unblemished glass, mile after empty mile. Entomologists call it “the windshield effect,” a relatable metric neatly summed up by a question: When was the last time you had to clean bug splatter from your windshield? This ritual was once an inevitable coda to any long drive.

THE INSECT CRISIS: The Fall of the Tiny Empires That Run the World, by Oliver MilmanĪnyone with a car has gathered data on insect declines.
