Lichen

When Park Ranger Anthony discovers critical levels of toxic air pollution in his national park, he must rally public attention and challenge a powerful industry to protect the environment and public health. When Park Ranger Anthony discovers critical levels of toxic air pollution in his national park, he must rally public attention and challenge a powerful industry to protect the environment and public health. When Park Ranger Anthony discovers critical levels of toxic air pollution in his national park, he must rally public attention and challenge a powerful industry to protect the environment and public health. When Park Ranger Anthony discovers critical levels of toxic air pollution in his national park, he must rally public attention and challenge a powerful industry to protect the environment and public health.