ENV100Y5 Lecture Notes - Lecture 6: Organochloride, Biomagnification, Geosphere
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ENV100Y5 Full Course Notes
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Document Summary
Central case: the plight of the st. lawrence belugas. The beluga is vulnerable and is an indicator for the great lakes-st. lawrence ecosystem. Environmental entities are complex systems that interact with each other. Network of relationships among components that interact with and influence each other. To solve environmental problems, all appropriate systems must be considered. A portion of the universe that can be separated from the rest, for the purpose of studying changes that occur within it, under changing conditions. However, boundaries overlap, systems and subsystems interact. We have to consider the system as interacting as a whole. Types of systems - based on properties of boundaries. Both matter and energy can be exchanged across the boundaries. Living in a closed system has some consequences. There is no away to throw things to. Energy can be exchanged across the boundaries, but matter cannot. Systems show several basic properties (especially complex systems) Systems are constantly changing, interacting, and balancing.
