Across the National Park System many changes are expected from climate change, from more wildfires and vanishing glaciers to invasions of non-native species and flight of long-term residents. Writer/photographer Michael Lanza, concerned that today's park landscapes will change significantly by the time his young kids are his age, has been touring the park system with his family to show his children what they might miss later in life.

If you were in Yellowstone National Park last year, pat yourself on the back. You helped push the park's annual visitation to a record 3,640,184 heads.

A new report names the 10 ecosystems in the United States whose species are most-threatened by climate change. Among the parks included in those ecosystems are Yellowstone, Everglades, and Yosemite.

In the grand scheme of wildlife management, 25 Yellowstone National Park bison are not that big of a deal, not when the park's herds are pushing 4,000 animals. But if 25 are allowed to freely roam into Montana on land just north of Mammoth Hot Springs, they could begin laying the foundation for much greater tolerance of bison in Montana.