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Lecture 22 - Lecture 22 Our love aair with re A"er this...

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Lecture’22’ Our’love’afair’with’Fre’
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A"er this class you should be able to explain: Diferences in renewable versus non-renewable resources What kind oF resources can be sustainably used? What does their sustainable use depend on? How can we prevent overexploita=on oF renewable resources? BrieF history oF our dependence on Fossil Fuels How is energy related to economic prosperity? What Factors make us in the USA par=cularly prone to poten=al Fossil Fuel shortages? What are poten=al alterna=ves For increasing energy independence? Why are we not likely to run out oF oil, even though produc=on oF crude oil is beginning to trail of and slow in this country, and globally? What are environmental damages associated with Fossil Fuel produc=on (including coal)?
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Can’you’use’a’renewable’ resource’(such’as’fsh’stocks’ or’;mber)’sustainably?’ The’sustainability’oF’renewable’versus’non-renewable’ resources’ Yes,’but’rates’oF’extrac;on’and’ method’oF’extrac;on’are’key’to’ allow’replenishment’oF’resource.’
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“Zoning’that’precludes’fshing’ac4vity’on’some’or’all’species’to’protect’cri4cal’habitat,’rebuild’ stocks’(long’term,’but’not’necessarily’permanent’closure),’provide’insurance’against’ overfshing,’or’enhance’fshery’yield.”’(Ocean’Studies’Board,’2001) SeIng’aside’sizable’marine’reserves’that’include’no-take’zones’could’reverse’the’trend’ in’declining’and’collapsing’fsh’stocks,’allowing’For’con;nued’availability’oF’an’ important’Food’source’in’Future’decades’and’centuries.’ Recognizing Benefts oF limi=ng Overexploita=on oF Resources
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Deforesta;on’in’the’Classic’Period’in’the’some’parts’of’the’Mediterranean,’ such’as’the’ balkans,’led’to’soil’degrada;on/erosion’and’decreases’in’soil’ fer;lity’that’has’prevented’original’vegeta;on’cover’to’fully’recover’even’ today,’2000’years’later .’ hQp://en.wikipedia.org/wiki/File:Karst_minerve.jpg’ But’;mber’industry’can’be’sustainable’if:’ -’Limi;ng’rates’of’extrac;on’ - Targeted’extrac;on’rather’than’clear’cuIng’ - Reforesta;on’e±orts’following’;mber’extrac;on’
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Lecture 22 - Lecture 22 Our love aair with re A"er this...

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