1. Write out the model of the impacts of humans on the earth that includes affluence and technology in addition to the population. Explain how the variables relate to one another. 2. Write out the model for the Happy Planet Index and explain each of the 4 components. What is the overall goal of HPI? Explain 3. What is the economic self-interest approach to human behavior? What is missing from this explanation of human behavior? Explain The Human-Earth Relationship Model

Model for Human-Earth Relationship

The Human-Earth Relationship Model (Brown and colleagues, 2019) is an ecological model which explains how humans impact the Earth. It also demonstrates how technology, population and affluence interact with each other to create the environment effects of human activities. According to this model, the main factors that affect the environment of human activity are population size and technology. These three factors are linked, and increases in population, technology, and affluence could lead to environmental degradation. Because it has direct effects on the environment, the greatest is population. Increased land use and increased water consumption are associated with greater amounts of resources. An increase in the population also leads to an increase in pollution and waste generation. This second model component is called “affluence”. It refers to higher consumption, as well as the increased use of technologically-advanced and resource-intensive goods. Affluence increases can lead to greater resource extraction and pollution. Technology, which is able to improve efficiency in production and use of resources, can lead to greater pollution (Sherbinin, et al. 2017). Cont…

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