Honey yields in the U.S. have been declining since the 1990s, with honey producers and scientists unsure why, but a new study by Penn State researchers has uncovered clues in the mystery of the missing honey.

Using five decades of data from across the U.S., the College of Agricultural Sciences researchers analyzed the potential factors and mechanisms that might be affecting the number of flowers growing in different regions — and, by extension, the amount of honey produced by honey bees.

Read more: Why are bees making less honey? Study reveals clues in five decades of data | Penn State University (psu.edu)