I used a couple key concepts from module 2 to help me construct this system diagram. Biogas production in rural India affects the people and environment there in many ways. Utilizing the biogas generator utilizes technology to increase the carrying capacity of the system. When using exclusively firewood for fuel, the people had one resource that could be depleted. Technology allows people to use a waste product to increase the available fuel for cooking and heat. I highlighted the biogas generator in a different color because it is the main driver of change in this example. Once biogas generation is possible, Firewood collection is reduced and people spend less time gathering it. Fuel is produced from the generator which reduces the polluting smoke of firewood, and gives people an efficient form of energy. The generator also produces usable nutrients which reduces pollution to the environment and produces income. The nutrients also boost agricultural production which again gives people income and more food. The addition of the generator to the system increases the stability of the system because there are fewer inflows and out flows. My diagram is similar to Marten’s in that there are two main interaction categories of humans and the environment. My diagram is different because it is more focused on the effect of the generator than the overall cycle. There are similarities because the purpose of the biogas generator is to effect the dynamics of the social-environmental system. It shows that these are complex systems and it is hard for a systems diagram to simplify it to just a couple interactions.