The value of wilderness depends upon the degree to which it remains undeveloped - a contrast to the highly developed world in which most of us live. However, designating areas as wilderness does not ensure sanctuary from events that threaten wild character. Even the ecosystems in these most protected of public lands are threatened. Wilderness is vulnerable to threats from both inside and outside of its boundaries. The demand for economic growth and a growing population exert significant pressures on wilderness. Many of these pressures are the same threats that other public lands face: overuse, fire suppression, invasive species, pollution, and lack of public awareness.