With NPS staff employment down since January, land managers are finding it more difficult to educate parkgoers about the ...

Dozen rivers subject to 'hoot owl' restrictions on afternoon fishing or all-out closures as biologists grapple with warming ...

Each color relates to a range of numbers associated with air quality on a scale designated by the Environmental Protection Agency. Green is “good.” Purple is “very unhealthy.” A deep maroon color was ...