Ninety-year trends reveal sharpest insect declines in the mid-twentieth century. - Neff F; Bollmann K; Chittaro Y; Gossner MM; Herzog F; Korner-Nievergelt F; Litsios G; Martínez-Núñez C; Moretti M; Rey E; Sanchez A; Knop E (Nature ecology & evolution, 2026)