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NEED What are GHG’s IPCC UCS CO2 graph - paleo Temp graph - paleo Pfaff plan. OUTLINE. To show the direct relationship between engine emissions and carbon dioxide concentrations in the atmosphere---- and global warming. To relate the science to the society To provide courses of action.
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NEED What are GHG’sIPCCUCSCO2 graph - paleoTemp graph - paleoPfaff plan.
OUTLINE • To show the direct relationship between engine emissions and carbon dioxide concentrations in the atmosphere---- and global warming. • To relate the science to the society • To provide courses of action.
The Planet The Engine
REGULAR BREATHING Happy Planet ! CO2 Level winter winter summer summer Season
The real planet we live on 375 CO2, ppm (parts per million) 315 1958 2004 Year
Where does the CO2 come from?GASOLINE OR COAL OR NATURAL GAS ALWAYS PRODUCES CARBON DIOXIDE AND WATER WHEN BURNED IN AIR Other products too, in very small amounts.
In different units:1 gallon of gas produces 18 lbs (8kg) of carbon dioxideRULE OF THUMB: 1 MILE ~ 1/2 POUND OF CO2.CO2 stays in the atmosphere for about 100 years, so it adds up.
Let’s calculate: 1 gallon of gas produces 8 kg of carbon dioxide IF 800 MILLION VEHICLES IN THE WORLD BURN 2 GALLONS EACH PER DAY How many kg of CO2 are produced per year?
Let’s calculate: 1 gallon of gas produces 8 kg of carbon dioxide IF 800 MILLION VEHICLES IN THE WORLD BURN 2 GALLONS EACH PER DAY Total kg of CO2 = 800 x 106x2x8x365 = 4672000 x 106 ≈ 5 x 1012 kg
Let’s calculate: 1 gallon of gas produces 8 kg of carbon dioxide So 5 x 1012 kg (5 billion tons) of carbon dioxide into the atmosphere each year, just from cars and trucks. IS THAT A BIG NUMBER?
The Atmosphere • The atmosphere of the earth is mainly Nitrogen (78%) and Oxygen (21%) by volume. • Carbon dioxide (a greenhouse gas) is only around 0.038% Q. How many parts per million is 0.038%?
The Atmosphere • The atmosphere of the earth is mainly Nitrogen (78%) and Oxygen (21%) by volume. • Carbon dioxide (a greenhouse gas) is only around 0.038% Q. How many parts per million is 0.038%? A. 0.038x10-2= 380 x 10-6= 380 ppm
The Atmosphere Carbon dioxide (a greenhouse gas) is only around 0.038% 375 CO2, ppm 315 1958 2004 Year Q. How many parts per million is 0.038%? A. 0.038x10-2= 380 x 10-6= 380 ppm
Mass of the Atmosphere is 5.2 thousand trillion tons So pA = matm g So matm = pA/g = p (4πR2)/g = 5.2 x1018 kg
Let’s calculate: 1 gallon of gas produces 8 kg of carbon dioxide Vehicles add 5 x 1012 kg of CO2 into the atmosphere each year. IS THAT A BIG NUMBER? Mass of atmosphere = 5.2 x1018 kg
i.e. One part of CO2 per million parts of atmospheric mass per year. (in volume units it is nearly 0.7 ppmv/yr) This is for vehicles only (add power plants etc. and it comes to around 2 ppmv/yr)
CO2 YEAR
temperature Carbon dioxide Easy to understand Much harder to understand
The State of Our Global Temperature The 10 warmest years have all occurred since 1994
310 N2O (ppb) 250 360 CO2 (ppm) 260 1750 CH4 (ppb) 750 1000 1200 1400 1600 1800 2000 Year The State of Our Atmosphere Data from IPCC
HUMAN DEVELOPMENT INDEX VS. ENERGY USE From A Pasternack LLNL Rep. No. UCLR-ID 140773 (Oct. 2000)
INDIA CO2 EMISSIONS Carbon dioxide Information center CDIAC.ORNL.GOV
US CO2/capita Carbon dioxide Information Center cdiac.ornl.gov
US CO2 emissions Carbon dioxide Information Center cdiac.ornl.gov
Carbon emissions are related to: • Population (N) • amount of carbon to make a unit of energy (C/E) • energy usage per unit of GDP (E/GDP) • GDP/capita (GDP/N)
Kaya Identity N = population GDP = Gross Domestic Product E = energy usage C=carbon into the atmosphere
C Kaya Identity: = N x GDP/N x Hoffert et al “Nature” V.395 29 Oct. 1998 E/GDP x C/E
CO2 and global warming are due to:Population increase(demography, geography,economics,sociology,psychology,history….)Increase in standard of living(development,sociology,economics,business,engineering,government………… )The amount of carbon we use to produce the energy(engineering, chemistry,physics,materials science…….)The energy usage per unit of GDP(business, economics,engineering,operations research……..)
MORE INFO: Google 1. IPCC (Intergovernmental Panel on Climate Change) 2. UCS (Union of Concerned Scientists) 3. Tom Pfaff’s Sustainability Calculus Page 4. State of the Planet course, Cornell 5. Institute for the Environment, Berkeley
ACTION 1.Internalization 2.Education/Research 3.Outreach 4.Involvement with policy 5. Examine Tradition
IPCC 2007