ES102 Lecture Notes - Open Defecation, Upper Class
Document Summary
Stage 1 no capture, wastewater collects in low lying areas. Stage 2 storm drains and collection sewers built. Stage 3 inception trunk and treatment centre built, it diverts sewage from going into rive to go to waste. Wetlands are another form of treating water, habitat for varies species, and naturally cleans water water treatment plant. Open defecation: safety concerns for open defecators, health issues that follow, quality of life decreased, Lack of investment in sanitation often rely on manual collection of waste. Many poorer countries are former colonies of european powers that did not invest. Upper class groups do not see a self interest in making sure all citizens have access to sanitation. Humans were hunters, gathers, scavengers to collect food. Society decided to explore agriculture, in many different societies, middle east, asia, europe etc. Benefits of agriculture causes, big families, increase of population, better diet. Family wants to be self-sufficient in food.
