Plastic Pen Metallic Pen Sketch the materials and energy flow for each product

Plastic pen metallic pen sketch the materials and

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Plastic Pen Metallic Pen Sketch the materials and energy flow for each product considering only the barrel Compare and Analyze
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L01 Slide 36 Decisions Made Without Life Cycle Thinking 1) Zero Emission Vehicle (ZEV) Program: California embarked on a plan to reduce vehicle emissions to zero through the introduction ZEV Program 2% of all vehicles by 1998 and 10% by 2003 Lead-acid battery 1100 lb Large masses of lead to be processed efficiently Lave et al. estimated that generating the electricity to charge the batteries would result in greater emissions of nitrogen oxide pollution than gasoline- powered cars
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L01 Slide 37 2) Incandescent bulb vs. LEDs vs. CFLs CFLs and LEDs use about 70% and 85% less energy and have 10 and 50 times longer lifetimes, respectively compared to Incandescent bulb CFLs and LEDs have higher resource depletion and toxicity potentials than the incandescent bulb due primarily to their high aluminum, copper, gold, lead, silver, zinc, and mercury Decisions Made Without Life Cycle Thinking Lim, Seong-Rin, et al. Environmental science & technology 47.2 (2012): 1040-1047.
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L01 Slide 38 Case Study: Bombardier
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January 11 & 14, 2019 L01 Part 3: Environmental Impacts, Part 1 Climate Change, Ozone Depletion
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L01 Slide 40 Planetary Boundaries Rockström, Johan, et al. nature 461.7263 (2009): 472-475. 2009 Green: proposed safe operating space
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L01 Slide 41
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L01 Slide 42 Environmental Impacts 1. Climate change 2. Ozone layer depletion 3. Winter/Summer smog 4. Acidification 5. Eutrophication 6. Toxic air pollution 7. Toxic water and ground pollution 1. Climate change 2. 3. 4. Acidification 5. Eutrophication 6. Toxic air pollution 7.
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L01 Slide 43 Cause-effect Chain of Environmental Impacts
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L01 Slide 44 Source: Intergovernmental Panel on Climate Change: 5 th Assessment Report
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L01 Slide 45 Source: NASA Most climate scientists agree that the main cause of the current global warming trend is human expansion of the " greenhouse effect
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L01 Slide 46 Greenhouse Gases (GHGs) Greenhouse Gases: Ozone (O 3 ) Water vapour (H 2 O) Carbon dioxide (CO 2 ) Methane (CH 4 ) Nitrous oxide (N 2 O) Chlorofluorocarbons (CFCs) Fs) F-gases (HFCs, PFCs, SF 6 , NF 3 ) Global Warming Potential (GWP): A measure of how much energy the emissions of 1 ton of a gas will absorb over a given period of time, relative to the emissions of 1 ton of carbon dioxide (CO 2 ) How does the greenhouse effect work?
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L01 Slide 47 Carbon Dioxide (fossil fuel and industrial processes) 65% Carbon Dioxide (forestry and other land use) 11% Methane 16% Nitrous Oxide 6% F-gases 2% Source: Intergovernmental Panel on Climate Change (IPCC) Carbon dioxide (CO 2 ): Electricity Transportation Industry Residential and Commercial Non-fossil fuel combustion Methane (CH 4 ): Natural gas and petroleum systems Enteric fermentation Landfills Manure management Coal mining Nitrous oxide (N 2 O): Agricultural soil management Stationary combustion Chemical production Manure management Transportation F-gases: Substitution of Ozone depleting substances Semiconductor manufacture HCFC-22 manufacture Electrical transmission and distribution Production and processing of aluminum and magnesium Global Greenhouse Gas Emissions
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L01 Slide 48 Source:
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