@CNN: The monarch butterfly population plummeted 86% since late 2017 in coastal areas of California, according to a preservation group https://t.co/CfPDnEjnkc https://t.co/60GKl6Gn7j

@CNN: The monarch butterfly population plummeted 86% since late 2017 in coastal areas of California, according to a preservation group https://t.co/CfPDnEjnkc https://t.co/60GKl6Gn7j