National Geographic covers the decline of the Monarch.
(2014) A National Geographic article on the decline of Monarch butterflies. The North American monarch population has declined by 90% over the past two decades. At its high in the winter of 1996-1997, there were a billion monarchs. Today, there are only about 35 million, according to a petition filed in August (2014) by scientists from several environmental organizations asking the U.S. Fish and Wildlife Service to classify the monarch as “threatened” under the U.S. Endangered Species Act.