tang yu chen / student

Plastic products for daily , although to make our lives more convenient, brought the ecological crisis. Plastic materials not only in the refining process will produce environmental pollution caused by toxic substances in the manufacturing process produces more greenhouse gases have brought the greenhouse effect, making the global climate change, ice melting, seriously affect the survival of polar bears. Extraction of a large number of human hunting seal oil seals, cruel hunting methods, not only deprived of the rights of fur seal survival, a significant reduction in the number of fur seals, species diversity may also bring indirect impact.