A coalition of environmental groups, including the National Parks Conservation Association, has sued the Environmental Protection Agency for failing to enforce the Regional Haze Rule required by the Clean Air Act. That failure could lead to "continued release of preventable haze-causing emissions that harm the health of our communities and blur landscapes at our most scenic national parks and wilderness areas," the groups maintain.

Visitors to Cape Lookout National Seashore on the Outer Banks of North Carolina are being asked to help monitor ghost forests with a photo or two.

It's only mid-June, but wildfire conditions are creeping up in some areas of the National Park System, with Voyageurs National Park issuing a ban on wood or charcoal fires and Yellowstone National Park warning visitors of moderate fire danger.

A New York man visiting Olympic National Park in Washington with his fiancée drowned on Lake Crescent in a kayaking accident.