Global Environmental Issues. Environmental issues are negative aspects of human activity on the biophysical environment. Some of the issues that came.

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Presentation transcript:

Global Environmental Issues

Environmental issues are negative aspects of human activity on the biophysical environment. Some of the issues that came up during a quick Google search for environmental issues: Climate ChangeConservationEnergyEnvironmental degradation Environmental HealthGenetic EngineeringIntensive Farming Land DegradationSoilLand UseNanotechnology Nuclear IssuesOverpopulation Ozone Depletion Pollution ReservoirsResource DepletionConsumerismToxins Waste

Food Distribution Maps Percentage of population that is undernourished Daily grams of protein per person Daily calories per personDaily grams of fat per person

Life Expectancy & Population Growth

Dare I say it?ConsumerismYour thoughts?

Are you an eco-consumer? Do you consider the consequences of consumerism? Have I just ruined your day?

How about Styrofoam containers from restaurants? Weeden to-go container Number of Styrofoam containers I have avoided by bringing my own

I am not suggesting that we stop buying things. I am suggesting we think about the things we are buying and take just one second to think past the moment…..

World Population and the consequences thereof….. Percentage of Population Without Reasonable Access to Safe Drinking Water Reasonable access to safe drinking water is defined as the availability of at least 20 liters per person per day from an improved source within 1 kilometer of the user's dwelling. Population graphics and information obtained from:

Water Resources……. Percent of water on the surface of the earth? Roughly 70% What percent of that water is salty and therefore not potable? Roughly 97% What percent of that fresh water is held up in glaciers? Roughly 1.74% Getting thirsty?

One estimate of global water distribution Water source Water volume, in cubic miles Water volume, in cubic kilometers Percent of freshwater Percent of total water Oceans, Seas, & Bays321,000,0001,338,000, Ice caps, Glaciers, & Permanent Snow 5,773,00024,064, Groundwater5,614,00023,400, Fresh2,526,00010,530, Saline3,088,00012,870, Soil Moisture3,95916, Ground Ice & Permafrost 71,970300, Lakes42,320176, Fresh21,83091, Saline20,49085, Atmosphere3,09512, Swamp Water2,75211, Rivers5092, Biological Water2691, Source: Igor Shiklomanov's chapter "World fresh water resources" in Peter H. Gleick (editor), 1993, Water in Crisis: A Guide to the World's Fresh Water Resources (Oxford University Press, New York). One estimate of global water distribution

How do we, as humans consumer water? Is the rate at which we consume it sustainable? Water use

Groundwater recharge (mm/year) Groundwater depletion (mm/year)

Glen Canyon Dam: a lesson in hydrogeology

What does all this mean for your future water security?