According to one of the studies on which the map is based, only 2 percent of natural areas east of the Mississippi are connected in a way that allows species to migrate north or up in elevation ...

The natural world is under siege by climate change. Rising temperatures are pushing plants and animals outside their current range. To keep pace with climate change, species will need a path to follow ...

According to one of the studies on which the map is based, only 2 percent of natural areas east of the Mississippi are connected in a way that allows species to migrate north or up in elevation ...

A map showing the different pathways wildlife could use to migrate northward or higher in elevation as the climate warms (red=mammals, blue=birds, yellow=amphibians). Credit: The Nature Conservancy ...

Six inches piled up on the summit of Mount Le Conte, Tenn. (elevation 6,594 feet), making it the second snowiest day in May on record, according to Brad Panovich, a meteorologist in Charlotte.