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Pennsylvania students with employment opportunities in high technology and community service fields . The creation of oxygen , decomposition of organic matter and filtration of water and air are essential for the survival of human beings . and yet , instead of living with great love and kindness , " mankind " tortures all the animals we've been given stewardship over , mutilate them , demolish the earth , pollute it , and ourselves constantly with poisons , overeating , and consumerism . At this site , a pesticide investigation did not find any causal links between environmental exposure and disease ; however , it did lead to the implementation of many positive public health actions such as increased health insurance coverage , pesticide tracking and better working conditions .