monarch butterflies

Monarch butterflies have declined by 90 percent since the 1990s. Photo: USFWS

The monarch butterfly is an iconic species that migrates through the heart of the United States each year. Unfortunately, the number of monarchs has decreased by 90 percent since their peak in the mid-90s.1 Monarch Butterflies at Risk The monarch butterfly’s decline in America isn’t a natural phenomenon. In fact, The Washington Post called it “nothing short of a massacre.”2Pollution-driven climate […]