A country without Butterflies: America’s butterflies are disappearing at ‘catastrophic’ rate, study says Butterflies are disappearing in the United States. All kinds of them. With a speed scientists call alarming. 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. The first countrywide systematic analysis of butterfly abundance found that the number of butterflies in the Lower 48 states has been falling on average 1.3% a year since the turn of the century, with 114 species showing significant declines and only nine increasing, according to a study in Thursday’s journal Science. “Butterflies have been declining the last 20 years,” said study co-autho...
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