Threats to health are increasing throughout the world particularly among low-income groups. Researchers are continuously trying to determine the link between human health and the environment (Lopez, 2012). This has led to changes in the way physicians look at healthcare the hence, their responsibilities are changing. In order to understand this relationship, it is important to understand how humans and the environment interact and the outcomes of this interaction. This understanding helps to provide effective primary care to patients. Some of the major topics of discussion among environmental scientists are cultural competence, mechanisms of environmental ...