GEOL 291 Lecture Notes - Lecture 2: Resource Management, Waterborne Diseases, Heat Capacity
13 Nov 2020
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Document Summary
Even in the earliest civilizations we can find evidence of water management. Delivered groundwater by gravity from an upland area where it was plentiful to lowland agricultural areas and cities. 300 bc roman empire developed extensive system to deliver surface water by gravity to cities. Water was delivered to fountains and baths where citizens collected and used it. Reduced amount of time individuals spent collecting water. Delivery of water for agriculture through irrigation. Farmers built dams and channels to control the seasonal floods. Build walls, waterways, and ditches to bring water to the fields. Irrigation allowed farmers to grow plenty of food and support a large population. Population growth, communication, fossil fuel use, and industrialization. Linked rainfall to flow of the river seine. Combined velocity and river cross section to obtain discharge of seine. Massive government infrastructure project, investment, and policies. 50 yrs ago - perception that water was infinite. Lack access to safe drinking water (1. billion)
