Water, Global Crisis, and Peace
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Osher (50+). In this course, we dicuss issues of water sustainability world-wide.
About this course:
While nearly 70 percent of the world is covered by water, only 2.5 percent of it is fresh. The rest is saline and ocean-based. Even then, just 1 percent of our freshwater is easily accessible, with much of it trapped in glaciers and snowfields. Threats to water supply include population expansion, urbanization, pollution, vegetation destruction and deforestation, and climate change. In this course, we look at present and future water sources worldwide, water management, and sustainable water technologies.