G101_EarthSystemConclusions

G101_EarthSystemConclusions - Our Physical Environment:...

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1 Our Physical Environment: Earth system links and the anthrosphere Geog101 Andrew Oliphant Net radiation at top of atmosphere Global surface temperature Mean June pressure fields Tectonic architecture Global landforms
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2 Annual Precip Global climates Global deserts Global vegetation types The anthrosphere • Who speaks for the Earth? (Carl Sagan) • Throughout this course we have witnessed the inextricable links between humans and the physical environment of our home planet – Release of CO2, and other pollutants affect the balance of the climate system – Pumping of aquifers, release of pollutants into waterways affect the hydrologic system – Damming of rivers, building of seawalls affects natural systems of erosion, transportation and deposition – Fires, deforestation and agriculture affect the sensitive balance of ecosystems and soils… Recent temperature change, sea level rise and decline of snow and ice
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3 Desertification and deforestation Soil degradation Water resource vulnerability index
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G101_EarthSystemConclusions - Our Physical Environment:...

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