The butterfly population in the U.S. fell 22% over the last two decades, research shows. Watch Next . Could the ocean be our solution to climate change?

(March 12, 2025)

America’s butterflies are disappearing because of insecticides, climate change and habitat loss, with the number of the winged beauties down 22% since 2000, a new study finds.

Butterfly populations in the United States have dropped by almost a quarter in the last two decades, according to a new analysis published last week in the journal Science. A team of more than 30 researchers analyzed 12.