Climate change slowly is changing the landscape of America’s national parks. As temperatures warm and storm traits alter, ecosystem change is anticipated and expected to carry a range of impacts.

A week after a powerful storm pounded Olympic National Park erosion continues to eat away at the Hurricane Ridge Road. Park officials say the road will be closed this weekend while crews work on it.

If this keeps up, we're going to have to redefine the "100-year storm." For the second time in 13 months Olympic National Park has been hit hard by a Pacific storm.

Glen Canyon National Recreation Area is one of the Southwest's premier boating areas, but in recent years the drought has really lowered Lake Powell. While that has opened up some fascinating canyon landscapes that had been underwater, the drought also has created some logistical problems for boaters.

Warming temperatures are remaking the Alaskan landscape. Sea ice is shrinking, permafrost is melting, glaciers are retreating, polar bears are changing their habits. In Wrangell-St. Elias National Park and Preserve, the warming trend is opening a window into the past, as melting glaciers are revealing artifacts from both the somewhat recent past and prehistoric cultures.

Whether you believe in climate change or global warming doesn't really matter these days. There is change ongoing with our climate. Evidence exists in melting icecaps, unusually potent storms, droughts, and warming temperatures in general. How these changes are affecting our national parks is a question that the National Parks Conservation Association explores in a special report.