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Lecture 3

Lecture 3 ENV SCI.docx
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Department
Environment
Course
ENV100Y5
Professor
Monika Havelka
Semester
Winter

Description
Lecture 3: Intro to ENV SCI We cant have one without the other. Millienium Ecosystem Assessment ­Comprehensive scientific assessment of the state of  the worlds  ecosystems and their ability to support life and civilization “Over the past 50 years, humans have changed ecosystems more rapidly and extensively  than in any comparable period of time in human history. This has resulted in a substantial  and largely irreversible loss in the diversity of life on Earth” Major findings of MEA ­ Rapid, extensive changes in the past 50 years ­ Substantial and irreversible loss in biodiversity ­ Net gains in human development and economic well­being, but at a cost ­ Degradation likely to worsen ­ Reversing the degradation of ecosystems will require significant changes ­ Paradigm shift – all of a sudden we look at saving the env as a way of improving  economy as well ­ Ecosystem services – they support us, leads to human well being ­ We cant have good government if we are impoverished and cant live ­ Major civilazations have been destroyed after they destroyed their resources and  env, therefore taking care of the env is critical Population, poverty, and over­consumption are root problems ­ Human populatin growth exacerbates environmental problems ­we add more then 200,000 people each day       ­ Consumption of resources has risen faster than population      ­Life has become more pleasant…     ­ However, rising consumption amplifies the demands we make on our environment ­ Poverty: people sell off their environmental assets in order to survive Sustainability is a goal for the future How do we defi
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