EAYH Lecture 22 Nov 29 - Lecture 22 EAYH Issues for a...

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Lecture 22: EAYH: Issues for a Livable Future Components of a Livable Future: meeting human needs for now and the future minimizing use of non-renewable resources non-renewable: coal and oil – though we have more COAL than we have oil problem is coal is dirty- gives off CO and mercury when burned! sustainable use of renewable resources renewable: fish? Water, keeping within absorptive capacity of local and global sinks for waste Precepts the physical environment, our habitat, is a very important determinant of human health protection of the environment and preservation of ecosystems are the most fundamental steps in preventing human illness environmental problems are global and long-term human belief systems are part of the problem how we behave We are basically in a fishbowl only one thing comes into this planet – SOLAR ENERGY only one thing that leaves – HEAT (hopefully) Within this ecosystem, we have: natural resources energy resources nature's services Nature's Services maintenance of biodiversity, from which humanity has derived key elements of its agricultural, medicinal, and industrial enterprise partial stabilization of the climate moderation of temperature extremes and the force of the wind and waves support of diverse human cultures providing aesthetic beauty and intellectual stimulation that lift the human spirit purification of air ( RAIN!!!!!) and water mitigation of floods and droughts detoxification and decomposition of wastes generation and renewal of soil and soil fertility pollination of crops and natural vegetation control of the majority of agricultural pests dispersal of seeds and translocation of nutrients protection from sun's harmful UV rays Environmental Impact on Health: A Schematic Global Regional Local Indirect vs. Direct health effects
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Chesapeake Bay – large estuary that is unique to Baltimore. However, other issues in Baltimore are similar to other cities Our wants and needs drive industry Wants and needs: chemical inputs (raw materials), power inputs (gas, oil, coal), other inputs
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EAYH Lecture 22 Nov 29 - Lecture 22 EAYH Issues for a...

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