Storing baseballs in a humidor may have reduced the number of home runs in Coors Field, home of the Colorado Rockies, but not for the conventionally-assumed reason, argue Edmund Meyer and John Bohn of the University of Colorado at Boulder in a pre-print article. The soggier balls would actually travel farther; but this effect is overmatched by the enhanced grippiness of the balls’ surfaces, which would give the edge to pitchers.