greenhouse effect is it getting warmer?. definition sun’s rays are trapped by greenhouse gases in...
TRANSCRIPT
![Page 1: GREENHOUSE EFFECT Is it getting warmer?. definition Sun’s rays are trapped by greenhouse gases in troposphere Heat is trapped like a greenhouse](https://reader035.vdocuments.net/reader035/viewer/2022081513/5697bffa1a28abf838cc0166/html5/thumbnails/1.jpg)
GREENHOUSE EFFECT
Is it getting warmer?
![Page 2: GREENHOUSE EFFECT Is it getting warmer?. definition Sun’s rays are trapped by greenhouse gases in troposphere Heat is trapped like a greenhouse](https://reader035.vdocuments.net/reader035/viewer/2022081513/5697bffa1a28abf838cc0166/html5/thumbnails/2.jpg)
definition
• Sun’s rays are trapped by greenhouse gases in troposphere
• Heat is trapped like a greenhouse
![Page 3: GREENHOUSE EFFECT Is it getting warmer?. definition Sun’s rays are trapped by greenhouse gases in troposphere Heat is trapped like a greenhouse](https://reader035.vdocuments.net/reader035/viewer/2022081513/5697bffa1a28abf838cc0166/html5/thumbnails/3.jpg)
Is this bad?
• Not all• Need greenhouse
effect to warm earth
• But…• Too much heat
creates global warming (enhanced greenhouse effect)
![Page 4: GREENHOUSE EFFECT Is it getting warmer?. definition Sun’s rays are trapped by greenhouse gases in troposphere Heat is trapped like a greenhouse](https://reader035.vdocuments.net/reader035/viewer/2022081513/5697bffa1a28abf838cc0166/html5/thumbnails/4.jpg)
EARTH
• Without Greenhouse Effect: 32º F
• With Greenhouse Effect: 57 º F
Mars- too little Venus- too much
![Page 5: GREENHOUSE EFFECT Is it getting warmer?. definition Sun’s rays are trapped by greenhouse gases in troposphere Heat is trapped like a greenhouse](https://reader035.vdocuments.net/reader035/viewer/2022081513/5697bffa1a28abf838cc0166/html5/thumbnails/5.jpg)
Enhanced Greenhouse Effect
Human contribution to Greenhouse Gases
![Page 6: GREENHOUSE EFFECT Is it getting warmer?. definition Sun’s rays are trapped by greenhouse gases in troposphere Heat is trapped like a greenhouse](https://reader035.vdocuments.net/reader035/viewer/2022081513/5697bffa1a28abf838cc0166/html5/thumbnails/6.jpg)
GHG
• Greenhouse gas
• Any gas the traps in heat
• Review: What gases make up the atm.?
![Page 7: GREENHOUSE EFFECT Is it getting warmer?. definition Sun’s rays are trapped by greenhouse gases in troposphere Heat is trapped like a greenhouse](https://reader035.vdocuments.net/reader035/viewer/2022081513/5697bffa1a28abf838cc0166/html5/thumbnails/7.jpg)
Greenhouse gases
• Water Vapor– H2O
– Sources (natural)• evaporation• volcanoes
– Concentration• 1-3 ppm
– Lifetime• A few days
– GWP= na
![Page 8: GREENHOUSE EFFECT Is it getting warmer?. definition Sun’s rays are trapped by greenhouse gases in troposphere Heat is trapped like a greenhouse](https://reader035.vdocuments.net/reader035/viewer/2022081513/5697bffa1a28abf838cc0166/html5/thumbnails/8.jpg)
But….Co2 is the biggest man-made
greenhouse gas
![Page 9: GREENHOUSE EFFECT Is it getting warmer?. definition Sun’s rays are trapped by greenhouse gases in troposphere Heat is trapped like a greenhouse](https://reader035.vdocuments.net/reader035/viewer/2022081513/5697bffa1a28abf838cc0166/html5/thumbnails/9.jpg)
Greenhouse gases
• Carbon dioxide-– CO2
– Sources• Burning fossil fuels
• Deforestation (trees use Co2)
• Cement production
– Concentration• 379 ppm (largest man-made contributor)
– Lifetime• varies
– GWP= 1
![Page 10: GREENHOUSE EFFECT Is it getting warmer?. definition Sun’s rays are trapped by greenhouse gases in troposphere Heat is trapped like a greenhouse](https://reader035.vdocuments.net/reader035/viewer/2022081513/5697bffa1a28abf838cc0166/html5/thumbnails/10.jpg)
What do we use fossil fuels for?
• Coal– electricity
• Oil– Gasoline– plastics
• Natural gas– heating
![Page 11: GREENHOUSE EFFECT Is it getting warmer?. definition Sun’s rays are trapped by greenhouse gases in troposphere Heat is trapped like a greenhouse](https://reader035.vdocuments.net/reader035/viewer/2022081513/5697bffa1a28abf838cc0166/html5/thumbnails/11.jpg)
Greenhouse gases
• Methane– CH4
– Sources• Agricultural waste
• Fossil fuels
• Land fills
– Concentration• 1.77 ppm = 1770 ppb
– Lifetime• 12 years
– GWP= 23
![Page 12: GREENHOUSE EFFECT Is it getting warmer?. definition Sun’s rays are trapped by greenhouse gases in troposphere Heat is trapped like a greenhouse](https://reader035.vdocuments.net/reader035/viewer/2022081513/5697bffa1a28abf838cc0166/html5/thumbnails/12.jpg)
Greenhouse gases
• Nitrous Oxide– N20
– Sources• Fertilizers• Combustion of ff
– Concentration• .319 ppm = 319 ppb
– Lifetime• 114 years
– GWP= 296
![Page 13: GREENHOUSE EFFECT Is it getting warmer?. definition Sun’s rays are trapped by greenhouse gases in troposphere Heat is trapped like a greenhouse](https://reader035.vdocuments.net/reader035/viewer/2022081513/5697bffa1a28abf838cc0166/html5/thumbnails/13.jpg)
Greenhouse gas producers
![Page 14: GREENHOUSE EFFECT Is it getting warmer?. definition Sun’s rays are trapped by greenhouse gases in troposphere Heat is trapped like a greenhouse](https://reader035.vdocuments.net/reader035/viewer/2022081513/5697bffa1a28abf838cc0166/html5/thumbnails/14.jpg)
![Page 15: GREENHOUSE EFFECT Is it getting warmer?. definition Sun’s rays are trapped by greenhouse gases in troposphere Heat is trapped like a greenhouse](https://reader035.vdocuments.net/reader035/viewer/2022081513/5697bffa1a28abf838cc0166/html5/thumbnails/15.jpg)
GH gases and climate graph
![Page 16: GREENHOUSE EFFECT Is it getting warmer?. definition Sun’s rays are trapped by greenhouse gases in troposphere Heat is trapped like a greenhouse](https://reader035.vdocuments.net/reader035/viewer/2022081513/5697bffa1a28abf838cc0166/html5/thumbnails/16.jpg)
Are we warming?
![Page 17: GREENHOUSE EFFECT Is it getting warmer?. definition Sun’s rays are trapped by greenhouse gases in troposphere Heat is trapped like a greenhouse](https://reader035.vdocuments.net/reader035/viewer/2022081513/5697bffa1a28abf838cc0166/html5/thumbnails/17.jpg)
Rising sea level by 2080(projected)