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Published byJoel Hill Modified over 8 years ago
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DO THIS CODE RED: 1. Write down HW in your agenda 2. Take Off: a) Moon Phase and Tides b) Open textbooks to page 433, and write questions and answers for questions 3 and 4 in your notes
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DO THIS: 10 – 15 million years ago, global temperatures were 10 to 11 degrees F warmer than today. Greenhouse Effect: 1. Carbon Dioxide, Methane, Nitrous Oxide, and Water Vapor trap heat in atmosphere 2. Vostok Ice Core Samples show carbon dioxide levels going up and down over 800,000 year period (peaking at 300 parts per million) 3. 15 million years ago, Miocene Epoch, carbon dioxide levels, thought to be over 400 parts per million Oceans up 100 feet higher (first humans 1 – 2 million yrs ago) Natural Climate Influences: Atmosphere: El Nino and La Nina Geology: Volcanic Eruptions Continents Moving Geography: Polar Regions (reflecting radiation) Physics of Earth: Orbital changes of the Earth Extraterrestrial: Solar Variation Potential Human Influences on Climate: Farming: Deforestation and more livestock Industrial Processes (Industrial Revolution late 1700s to early 1900s) Factory effluents Fossil Fuel burning Automobile exhaust Landfills release carbon dioxide and methane Methods we can use to reduce greenhouse gases: Recycle Conserve Water Conserve Energy Alternative Energy Electricity (though much is still made by coal burning) Biofuels (energy from animal and plant products, but can be costly and lead to more farming) Solar (but still expensive, doesn’t produce speed or power of fossil fuels, and not as efficient when sun is blocked) Ice Cores: Scientists drill into ice for ice cores (cylinder of ice, some almost 2 miles deep) Ice cores have air bubbles frozen inside Proxy: things (indirect measures for research) that give us clues about the past: Tree rings Fossils Ice Cores Lake Sediments
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DO THIS 4. Oceans up 100 feet higher (first humans 1 – 2 million yrs ago) Natural Climate Influences 1. Atmosphere: El Nino and La Nina 2. Geology: Volcanic Eruptions Continents Moving 3. Geography: Polar Regions (reflecting radiation) 4. Physics of Earth: Orbital changes of the Earth Extraterrestrial: Solar Variation Potential Human Influences on Climate: Farming: Deforestation and more livestock Industrial Processes (Industrial Revolution late 1700s to early 1900s) Factory effluents Fossil Fuel burning Automobile exhaust Landfills release carbon dioxide and methane Methods we can use to reduce greenhouse gases: Recycle Conserve Water Conserve Energy Alternative Energy Electricity (though much is still made by coal burning) Biofuels (energy from animal and plant products, but can be costly and lead to more farming) Solar (but still expensive, doesn’t produce speed or power of fossil fuels, and not as efficient when sun is blocked) Ice Cores: Scientists drill into ice for ice cores (cylinder of ice, some almost 2 miles deep) Ice cores have air bubbles frozen inside Proxy: things (indirect measures for research) that give us clues about the past: Tree rings Fossils Ice Cores Lake Sediments
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DO THIS: 5. Extraterrestrial: Solar Variation Potential Human Influences on Climate: 1. Farming: Deforestation and more livestock 2. Industrial Processes (Industrial Revolution late 1700s to early 1900s) Factory effluents Fossil Fuel burning Automobile exhaust 3. Landfills release carbon dioxide and methane 4. Methods we can use to reduce greenhouse gases: Recycle Conserve Water Conserve Energy Alternative Energy Electricity (though much is still made by coal burning) Biofuels (energy from animal and plant products, but can be costly and lead to more farming) Solar (but still expensive, doesn’t produce speed or power of fossil fuels, and not as efficient when sun is blocked) Ice Cores: Scientists drill into ice for ice cores (cylinder of ice, some almost 2 miles deep) Ice cores have air bubbles frozen inside Proxy: things (indirect measures for research) that give us clues about the past: Tree rings Fossils Ice Cores Lake
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DO THIS: gases: Recycle Conserve Water Conserve Energy 5. Alternative Energy Electricity (though much is still made by coal burning) Biofuels (energy from animal and plant products, but can be costly and lead to more farming) Solar (but still expensive, doesn’t produce speed or power of fossil fuels, and not as efficient when sun is blocked) Ice Cores: Scientists drill into ice for ice cores (cylinder of ice, some almost 2 miles deep) Ice cores have air bubbles frozen inside Proxy: things (indirect measures for research) that give us clues about the past: Tree rings Fossils Ice Cores Lake
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DO THIS: Ice Cores: 1. Scientists drill into ice for ice cores (cylinder of ice, some almost 2 miles deep) 2. Ice cores have air bubbles frozen inside 3. Proxy: things (indirect measures for research) that give us clues about the past: Tree rings Fossils Ice Cores Lake
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