Non-renewable and Renewable Resources How to not use up what we got to create the energy we need.
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Transcript of Non-renewable and Renewable Resources How to not use up what we got to create the energy we need.
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Non-renewable and Renewable Resources
How to not use up what we got to create the energy we need
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7.02 billion People on Earth
Smog contains ground level ozone from burning fossil fuels; ground level ozone forms when an oxygen molecule is transferred from nitrogen dioxide to an oxygen molecule creating O3
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What played a role in human growth in 20th century?
• Improved transportation which increased immigration
• ---when people from developing countries immigrate to developed countries they obtain better nutrition, better medical care which results in longer life and more births.
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Greenhouse Gases and Earth
We need greenhouse gases to absorb infrared radiation to keep the Earth warm.
•BUT
We have created a trend of increasing temperatures on Earth due to our increase use of fossil fuels.
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We have modified our environment due to
technological advances
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World population
• Can stabilize after fertility rates fall below replacement level
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Resource most impacted
water
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Diseases
• Dysentery—spread through unsafe water sources
• TB—spread through close contact then international travel
• Malaria—spread through global warming providing increases in disease carrying mosquitoes
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What We Use
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Five Factors that influence value of fuel
• Cost
• Availability
• Safety
• Energy Content
• Byproducts of the fuel’s use
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Resources vs Reserves• Resources
natural concentrations of minerals or, bodies of rock that are, or may become, of potential economic interest due to their inherent properties.
• Reserves
the estimated quantity of minerals that could be extracted from a site, is of considerable importance to governments, international agencies, economists and the international energy industry.
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Resources vs Reserves
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Fossil Fuels
• Are readily available and inexpensive compared to alternative energy sources
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How Fossil Fuels Got Their Name
• http://www.youtube.com/watch?v=cJ-J91SwP8w 5:38min
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All About Coal
• http://www.youtube.com/watch?v=71kckb8hhOQ
• http://cnettv.cnet.com/60-minutes-powered-coal/9742-1_53-50070761.html
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How Coal is Formed
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• Pockets of oil and natural gas may become trapped between layers of non-porous rock
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Types of Coal
http://www.youtube.com/watch?v=BoucOB73Tyk
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Nuclear Power
• http://www.youtube.com/watch?v=VJfIbBDR3e8 4min
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Nuclear Energy
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Pros/Cons of Nuclear
Pro---does not produce an air
pollution very efficient energy
Con—difficulty of safe storage of
wastehigh costspossibility of nuclear melt
down
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What do Coal and Nuclear Have in Common?
generatorsturnbines
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Fission and Fusion
• http://www.shell.us/home/content/usa/environment_society/education/teacher/interactive_activities/
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Non-renewable Energy Sources
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Natural Gas
• Natural gas is usually found underground near an oil source.
• It is a mixture of light hydrocarbons including methane, ethane, propane, butane, and pentane.
• Natural gas is the cleanest burning fossil fuel.
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Energy Use
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Carbon Footprint
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How to Reduce Your Carbon Footprint
Unplug! Drink from the Tap!
CFLs
Recycle
Eat local products
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Renewable Energy
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Wind Energy
• Fastest growing energy source in the world
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How Solar Power Works
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Geo-Thermal Power
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How GeoThermal Works
• Ground is colder than the air in summer and warmer than the air in winter
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Tidal Power
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Electromagnetic Power
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Hydroelectric Power
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Wave Power
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Sustainability
Human needs are met in such a way that a
human population can survive indefinitely
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What you can to influence the environment
• Vote• Think globally, act
locally• Consumer choices