A computer analysis suggests that climate change could ruin the current Mexican overwintering sites for monarch butterflies and perhaps wipe out the insect’s populations in eastern North America.
HANG IN THERE. Monarch butterflies’ winter homes in Mexico may become unsuitable as the climate changes and the risk of snow and ice increases.
While monarchs that summer in the western United States and Canada gather each autumn by the tens of thousands at spots along the California coast, east of the Rocky Mountains, monarchs head toward Mexico.
Log in
Subscribers, enter your e-mail address for full access to the Science News archives and digital editions.