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9 Cards in this Set
- Front
- Back
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6-1 Atmospheric Carbon Dioxide Concentration over time |
Higher C02 = Higher Temps
Co2 concentration in ice from millions of years ago is lower so temp is lower In 200,000 years, C02 fluctuated highly. |
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6-2 What is the green house effect? |
Green house effect = Co2, Water Vapor, and ethane absorbing IV waves Objects absorbs heat waves then once warmed, releases it to cooler objects Radiated heat is reabsorbed by molecules then sent back to ojects again |
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6-3 Why worry about carbon dioxide? |
280 ppm of C02 to 380 in 150 years C02 Methane and Water absorbs a lot of infrared radiation and causes more heat 600 ppm of C02 = 1.5Celcius to 6Celcius in Temp. Increase |
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6-4 Other green house gases |
CFCs are made by humans
Radiational cooling = clouds trap warm heat so nights lose heat slower Some gases absorb IR better but are in low conecntrations C02, CH4, N20, O3, CCl3F, CCl2F2, respectively |
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6-5 Sources of Greenhouse Gases |
25 billion tons of C02 added to atmosphere each year 22 billion tons are humans Plants absorb 10 billion tons Methane is efficient absorber of Infrared and increasing due to live stock Livestock poops out methane |
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6-6 What do we know for sure about global warming |
1.4Celcius to 5.8Celcius increase in temp by 2100 = catastrophe 2Celcius in increase would equal higher temp. than in 2 million years Greenhouse Gasses will increase relative to population |
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6-7 Consequences of Global Warming -- Good or bad? |
Oceans release C02 when they warm up which increase temps. More diseased prevalent up North due to less temp. restraints Certain atmospheric concentration of GG may trigger climate system reorganization |
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6-8 The Kyoto Conference Addresses Global Warming |
U.S. declines Pollution act due to economic set backs 124 countries agreed to reducing C02 in Feb 16, 2005 China, U.S., Russia, India and Japan are biggest GG producers, respectively |
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6-9 Possible responses to global warming |
Reducing World Population can decrease C02 Fertilizing ocean with phytoplankton can reduce C02 Imposing "Carbon tax" can reduce usage of C02. |
