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EGEE 102 – Energy Conservation
And Environmental Protection
Global Warming
EGEE 102 - Pisupati 2
EGEE 102 - Pisupati 3
Greenhouse Gases
• Carbon dioxide
• combustion of solid waste, fossil fuels (oil, natural
gas, and coal), and wood and wood products
• Methane :
• production and transport of coal, natural gas, and oil.
Methane emissions also result from the
decomposition of organic wastes in municipal solid
waste landfills, and the raising of livestock.
• Nitrous oxide
• agricultural and industrial activities, as well as during
combustion of solid waste and fossil fuels.
• hydrofluorocarbons (HFCs), perfluorocarbons
(PFCs), and sulfur hexafluoride (SF6),
• industrial processes.Source: http://www.epa.gov/globalwarming/emissions/index.html
EGEE 102 - Pisupati 4
Temperature Changes
EGEE 102 - Pisupati 5
GHG Emissions Increase
• Since pre-industrial times
atmospheric concentrations of CO2,
CH4 and N2O have climbed by over
31%, 151% and 17%, respectively.
Scientists have confirmed this is
primarily due to human activity.
Burning coal, oil and gas, and
cutting down forests are largely
responsible.
EGEE 102 - Pisupati 6
Global Warming
• Cut your utility bills by purchasing
energy-efficient appliances, fixtures,
and other home equipment and
products. The average house is
responsible for more air pollution
and carbon dioxide emissions than
is the average car.
EGEE 102 - Pisupati 7
Global Warming
PotentialGas GWP
Carbon dioxide (CO2) 1
Methane (CH4)* 21
Nitrous oxide (N2O) 310
HFC-23 11,700
HFC-125 2,800
HFC-134a 1,300
HFC-143a 3,800
HFC-152a 140
HFC-227ea 2,900
HFC-236fa 6,300
HFC-4310mee 1,300
CF4 6,500
C2F6 9,200
C4F10 7,000
C6F14 7,400
SF6 23,900
EGEE 102 - Pisupati 8
Role of Energy
EGEE 102 - Pisupati 9
Emissions By Sector
EGEE 102 - Pisupati 10
Greenhouse Gas
Emissions
EGEE 102 - Pisupati 11
Individual Emissions
• In the United States, approximately
6.6 tons (almost 15,000 pounds
carbon equivalent) of
greenhouse gases are emitted per
person every year. And emissions
per person have increased about
3.4% between 1990 and 1997. Most
of these emissions, about 82%, are
from burning fossil fuels to generate
electricity and power our cars.
EGEE 102 - Pisupati 12
Effects
• Health
• Water resources
• Polar regions
• Mountains
• Forests
• Rangelands
• Deserts
• Coastal Zones
• Agriculture
• International
Required Reading:
http://www.epa.gov/globalwarming/
impacts/index.html
EGEE 102 - Pisupati 13
Greenhouse Gas
Emisions
EGEE 102 - Pisupati 14
Solution
Required Reading:
http://www.epa.gov/globalwarming/
actions/index.html
EGEE 102 - Pisupati 15
Class Videos
• Race to Save the Planet
• The Greening of the world Continues
EGEE 102 - Pisupati 16
Required Additional
Reading
• http://www.epa.gov/globalwarming/
climate/index.html
• http://www.epa.gov/globalwarming/
actions/individual/difference/index.h
tml
• http://www.giss.nasa.gov/edu/gwde
bate/

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6. global warming

  • 1. EGEE 102 – Energy Conservation And Environmental Protection Global Warming
  • 2. EGEE 102 - Pisupati 2
  • 3. EGEE 102 - Pisupati 3 Greenhouse Gases • Carbon dioxide • combustion of solid waste, fossil fuels (oil, natural gas, and coal), and wood and wood products • Methane : • production and transport of coal, natural gas, and oil. Methane emissions also result from the decomposition of organic wastes in municipal solid waste landfills, and the raising of livestock. • Nitrous oxide • agricultural and industrial activities, as well as during combustion of solid waste and fossil fuels. • hydrofluorocarbons (HFCs), perfluorocarbons (PFCs), and sulfur hexafluoride (SF6), • industrial processes.Source: http://www.epa.gov/globalwarming/emissions/index.html
  • 4. EGEE 102 - Pisupati 4 Temperature Changes
  • 5. EGEE 102 - Pisupati 5 GHG Emissions Increase • Since pre-industrial times atmospheric concentrations of CO2, CH4 and N2O have climbed by over 31%, 151% and 17%, respectively. Scientists have confirmed this is primarily due to human activity. Burning coal, oil and gas, and cutting down forests are largely responsible.
  • 6. EGEE 102 - Pisupati 6 Global Warming • Cut your utility bills by purchasing energy-efficient appliances, fixtures, and other home equipment and products. The average house is responsible for more air pollution and carbon dioxide emissions than is the average car.
  • 7. EGEE 102 - Pisupati 7 Global Warming PotentialGas GWP Carbon dioxide (CO2) 1 Methane (CH4)* 21 Nitrous oxide (N2O) 310 HFC-23 11,700 HFC-125 2,800 HFC-134a 1,300 HFC-143a 3,800 HFC-152a 140 HFC-227ea 2,900 HFC-236fa 6,300 HFC-4310mee 1,300 CF4 6,500 C2F6 9,200 C4F10 7,000 C6F14 7,400 SF6 23,900
  • 8. EGEE 102 - Pisupati 8 Role of Energy
  • 9. EGEE 102 - Pisupati 9 Emissions By Sector
  • 10. EGEE 102 - Pisupati 10 Greenhouse Gas Emissions
  • 11. EGEE 102 - Pisupati 11 Individual Emissions • In the United States, approximately 6.6 tons (almost 15,000 pounds carbon equivalent) of greenhouse gases are emitted per person every year. And emissions per person have increased about 3.4% between 1990 and 1997. Most of these emissions, about 82%, are from burning fossil fuels to generate electricity and power our cars.
  • 12. EGEE 102 - Pisupati 12 Effects • Health • Water resources • Polar regions • Mountains • Forests • Rangelands • Deserts • Coastal Zones • Agriculture • International Required Reading: http://www.epa.gov/globalwarming/ impacts/index.html
  • 13. EGEE 102 - Pisupati 13 Greenhouse Gas Emisions
  • 14. EGEE 102 - Pisupati 14 Solution Required Reading: http://www.epa.gov/globalwarming/ actions/index.html
  • 15. EGEE 102 - Pisupati 15 Class Videos • Race to Save the Planet • The Greening of the world Continues
  • 16. EGEE 102 - Pisupati 16 Required Additional Reading • http://www.epa.gov/globalwarming/ climate/index.html • http://www.epa.gov/globalwarming/ actions/individual/difference/index.h tml • http://www.giss.nasa.gov/edu/gwde bate/