Fossil Fuels vs. Alternative Energy. Renewable vs. Non-renewable Renewable energy sources can be...
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Transcript of Fossil Fuels vs. Alternative Energy. Renewable vs. Non-renewable Renewable energy sources can be...
Renewable vs. Non-renewable• Renewable energy sources can be
replenished in a short period of time. • The five renewable sources used most
often are: Solar, Wind, Biomass, hydropower and geothermal.
• Non-renewable energy sources can not be replenished (made again) in a short period of time.
• Examples are coal, oil (petroleum) and natural gas (methane)=(Fossil Fuels)
Traditional Energy Sources
Negatives:• Not Sustainable (to supply)• Environmental impact• CO2 Emissions (green house
effect)
Fossil Fuels= fuels made from the remains of dead plants and animals millions of years ago.
Positives:•Generally Inexpensive•Versatile in its uses•Easily transported
•Coal •Oil•Natural Gas
Fossil Fuels• Coal• Oil• Natural
Gas
Also known asPositives:•Readily available •Versatile in its uses•Inexpensive •Easily transported
Negatives:•Strip-mining•Releases CO2 into atmosphere•Nonrenewable•Health concerns
Anthracite, Bituminous, Lignite
When burned, provides more than 50% of the electricity in the Unites States!
Fossil Fuels• Coal • Oil• Natural
Gas •Easily transported•Versatile in its uses
Negatives:•Releases CO2 into atmosphere•Nonrenewable•Environmental impact
Also know as PetroleumPositives:
Fossil Fuels• Coal • Oil• Natural
Gas •Burns cleaner than coal•Easily transported•Versatile in its uses (propane gas is used in gas grills)
Negatives:•Releases CO2 into atmosphere•Explosive•Nonrenewable
Also know as MethanePositives:
Why do we need alternative energy resources?
• Fossil fuels take millions of years to be made.
• We are consuming fossil fuels worldwide at an alarming rate with no end in sight!
• We are Destroying the environment and its’ ecosystems.
• More animals are becoming extinct and endangered everyday!
Depletion of Rain Forest on the Island of Madagascar
Recently Extinct Animals
• Passenger Pigeon 1914
• North America
• Golden Toad 1989
• Costa Rica
Recently Extinct Animals
• Caribbean Monk Seal 1952
• Caribbean Sea and the Gulf of Mexico
• Pyrenean Ibex 2000
• France and Spain
Recently Extinct Animals
• Tecopa Pupfish 1981
• California
• Baiji River Dolphin 2006
• China
WHAT ARE FOUR REASONS WHY WE NEED TO FIND ALTERNATIVE FUELS?
•Fossil fuels take millions of years to be made.
•*Fossil fuels are beginning to run out worldwide*
•Destroying the environment and ecosystems.
•Animals are becoming extinct and endangered!
Alternative Energy Sources• Nuclear• Solar• Wind• Geothermal• Hydroelectric• Hydrogen
Fuel• Biodiesel
Alternative Energy Sources• Nuclear• Solar• Wind• Geothermal• Hydroelectric• Hydrogen
Fuel• Biodiesel
Alternative Energy Sources• Nuclear• Solar• Wind• Geothermal• Hydroelectric• Hydrogen
Fuel• Biodiesel
Positives:• Low Fuel Cost• Little Pollution
Negatives• Disposal of Radioactive waste• Meltdowns• Safety
• Ex-Salem Nuclear Power Plant (NJ)
Alternative Energy Sources• Nuclear• Solar• Wind• Geothermal• Hydroelectric• Hydrogen
Fuel• Biodiesel