comparative lca webinar june 19, 201926mvtbfbbnv3ruuzp1625r59-wpengine.netdna-ssl.com/wp...a life...
TRANSCRIPT
![Page 1: Comparative LCA Webinar June 19, 201926mvtbfbbnv3ruuzp1625r59-wpengine.netdna-ssl.com/wp...A Life Cycle Assessment(LCA) is an internationally recognized method (ISO) that evaluates](https://reader034.vdocument.in/reader034/viewer/2022052017/602fc116b774850ed7362f39/html5/thumbnails/1.jpg)
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Comparative LCA WebinarJune 19, 2019
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What’s happening to planet Earth?
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A Life Cycle Assessment (LCA) is an internationally recognized method (ISO) that evaluates the environmental impacts of products, processes or services through their stages of raw material extraction, production, usage, and disposal (cradle-to-grave).
What is a Life Cycle Assessment?
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What environmental impact areas were evaluated?
Global Warming(kg CO2-eq)
Acidification(to air and water, kg SO2-eq)
Eutrophication(to air and water, kg N-eq)
Smog Formation(kg O3-eq)
Non-Renewable Energy(IMPACT2002+) (MJ primary)
Water Consumption(kg)
Respiratory Effects(kg PM2.5-eq)
Ozone Depletion(kg CFC-11-eq)
Solid Waste(kg)
7 Impact Indicators:
2 Inventory Flows:
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Cradle represents the impact of the primary raw materials used in the manufacturing of a product.
• For corrugated boxes, it represents seedlings• For reusable plastic crates (RPCs), it represents crude oil
Grave represents the end-of-life (EOL) of a particular product.
• For corrugated boxes, it represents recycling, incineration and landfill• For RPCs, it represents recycling, incineration and landfill
What is cradle-to-grave?
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Materials & production UseConversion
Container board
production
Produce packing
Produce marketing and display
CCconverting
TT T T
T
Virgin fiber production
non-virgin fiber from
other systems
End-of-life
Landfill
Incineration
Collection for recycling
T
T
T
to other systems
T Transportation step
Typical Diagram of the Cradle-to-Grave for Corrugated Boxes
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Re-use
UseMaterials and Production End-of-life
Virgin PP production
RPC production
Washing
Produce packing
Produce marketing and
display
Landfill
Incineration
Collection for recycling
TT T
T
T
TT
T
T
PP Recycling
Sorting
TRPC
recyclingto other systems
PP from other
systems
T Transportation step
Typical Diagram of Cradle-to-Grave for RPCs
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LCAs help answer questions from customers, retailers, ENGOs and other environmental groups, such as:
• Walmart – “What is the corrugated industry doing to help reduce the impact of greenhouse gas on the environment?”
• Kroger – “Do single-use corrugated boxes or multi-use plastic crates have a lower impact on the environment in the produce segment?”
Why does the corrugated industry perform life cycle assessments?
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An Industry Average LCA tracks the impact of a corrugated box on the environment over a period of time
A Comparative LCA compares the impacts of corrugated boxes and RPCs on the environment for specific product items
Helps to answer the Walmart question Helps to answer the Kroger question
Are there different types of LCAs?
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What were the results of the 2017 Industry Average LCA?
Global Warming
35% Reduction
Renewable Energy
13.8% Increase
Acidification
20% Reduction
Eutrophication
29% Reduction
Smog
23% Reduction
Non-Renewable Energy
9.8% Reduction
Water Use
21% Reduction
Respiratory
21% Reduction
Fossil Fuel Depletion
3.8% Reduction
Ozone
3.4% Reduction
Actual LCA Results: 2014 vs. 2006
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What is behind the numbers?
What’s driving results?
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What is behind the numbers?
50%
50%
96%
4%
Wax, Hazmat and non-recycled
household boxes
Virgin fiber average content
Recycled fiber average content
OCC Recovery rate
A single tree absorbs 10
pounds of CO2each year
Every ton of OCC recovered saves
3.3 cubic yards of landfill space
What’s driving results?
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0
5
10
15
20
25
30
1920 1933 1952 1976 1986 1996 2016
Bill
ion
s o
f C
ub
ic F
ee
t P
er
Year
U.S. Timber Growth and Removals, 1920-2016
Net Growth Removals
What is driving the results?
After fires, insects, disease and the forces of nature, forests are
growing 1.7 times greater than
harvesting each year
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Comparing corrugated boxes to RPCs in the produce segment
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• Single-use• Light weight• Infinite design• Graphics/Branding• Clean• Lower transport cost
Comparing corrugated boxes to RPCs in the produce segment
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• Single-use• Light weight• Infinite design• Graphics/Branding• Clean• Lower transport cost
• Multi-use• Heavier weight• Rigid sides• Collapsible walls• Washed/sanitized• Additional transport cost
Comparing corrugated boxes to RPCs in the produce segment
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• Single-use• Lighter weight• Infinite design• Graphics/Branding• Clean• Lower transport cost
• Multi-use• Heavier weight• Rigid sides• Collapsible walls• Washed/sanitized• Additional transport cost
Reusable
RenewableRecycled
Comparing corrugated boxes to RPCs in the produce segment
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The functional unit for this study is to provide containment during filling, transport and display of 907,185 kg (1,000 short tons) of grocery market produce in the United States in a manner that maintains the safety of the produce for human consumption and that is consistent with commercial supply chains.
How did the LCA Compareproduce packaging?
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Commodity Market share
Apples 23%
Carrots 7%
Grapes 7%
Lettuce – head 15%
Onions 19%
Oranges 11%
Strawberries 8%
Tomatoes 10%
What produce items were studied?
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Assumptions for corrugated boxes Assumptions for RPCs
• Weight (unit mass) – Actual• OCC recovery rate – 85%• Recycled content – 38.4%• Biogenic accounting – Flow
approach
• Number of uses – 24 • Breakage and loss rate – 5% • Recycled content – 25%• Cleaning process – 70/30 ratio
LCA Assumptions
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Results – Market-Weighted Average
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Results – Market-Weighted Average
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Results – By Category
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Results – By Category
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System Strawberries Tomatoes Oranges Apples Carrots Lettuce Onions Grapes
Functional unit mass ratio
n/a 0.33 0.34 0.36 0.37 0.39 0.44 0.51 0.54
Acidification(kg SO2-eq)
CC 1,100 500 480 490 400 490 570 970
RPC 740 290 250 230 190 210 210 360
Eutrophication(kg N-eq)
CC 99 44 42 43 36 40 46 79
RPC 190 72 58 55 47 52 52 90
Global Warming(kg CO2-eq)
CC 150,000 67,000 64,000 65,000 54,000 67,000 78,000 130,000
RPC 350,000 130,000 130,000 110,000 90,000 110,000 110,000 170,000
Non-renewable energy(IMPACT 2002+) (MJ)
CC 1,800,000 790,000 760,000 760,000 640,000 790,000 910,000 1,600,000
RPC 6,000,000 2,200,000 2,100,000 1,800,000 1,500,000 1,700,000 1,700,000 2,800,000
Ozone depletion(kg CFC-11-eq)
CC 0.012 0.005 0.005 0.005 0.004 0.005 0.005 0.009
RPC 0.011 0.005 0.004 0.004 0.003 0.004 0.004 0.006
Respiratory effects(kg PM2.5-eq)
CC 130 56 54 55 45 52 60 100
RPC 90 35 28 27 23 25 25 43
Smog formation(kg O3-eq)
CC 12,000 5,400 5,200 5,300 4,300 5,100 5,900 10,000
RPC 11,000 4,400 3,900 3,600 2,900 3,300 3,400 5,500
Freshwater consumption (m3)
CC 3,600,000 1,600,000 1,500,000 1,600,000 1,300,000 1,500,000 1,700,000 2,900,000
RPC 1,800,000 750,000 630,000 630,000 510,000 550,000 550,000 940,000
Solid waste (kg) CC 4,400 1,900 1,900 1,900 1,600 2,000 2,300 3,900
RPC 20,000 8,600 7,900 7,900 6,000 6,700 6,600 11,000
Results – By Category
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Results – By CategorySystem Strawberries Tomatoes Oranges Apples Carrots Lettuce Onions Grapes
Functional unit mass ratio
n/a 0.33 0.34 0.36 0.37 0.39 0.44 0.51 0.54
Acidification(kg SO2-eq)
CC 1,100 500 480 490 400 490 570 970
RPC 740 290 250 230 190 210 210 360
Eutrophication(kg N-eq)
CC 99 44 42 43 36 40 46 79
RPC 190 72 58 55 47 52 52 90
Global Warming(kg CO2-eq)
CC 150,000 67,000 64,000 65,000 54,000 67,000 78,000 130,000
RPC 350,000 130,000 130,000 110,000 90,000 110,000 110,000 170,000
Non-renewable energy(IMPACT 2002+) (MJ)
CC 1,800,000 790,000 760,000 760,000 640,000 790,000 910,000 1,600,000
RPC 6,000,000 2,200,000 2,100,000 1,800,000 1,500,000 1,700,000 1,700,000 2,800,000
Ozone depletion(kg CFC-11-eq)
CC 0.012 0.005 0.005 0.005 0.004 0.005 0.005 0.009
RPC 0.011 0.005 0.004 0.004 0.003 0.004 0.004 0.006
Respiratory effects(kg PM2.5-eq)
CC 130 56 54 55 45 52 60 100
RPC 90 35 28 27 23 25 25 43
Smog formation(kg O3-eq)
CC 12,000 5,400 5,200 5,300 4,300 5,100 5,900 10,000
RPC 11,000 4,400 3,900 3,600 2,900 3,300 3,400 5,500
Freshwater consumption (m3)
CC 3,600,000 1,600,000 1,500,000 1,600,000 1,300,000 1,500,000 1,700,000 2,900,000
RPC 1,800,000 750,000 630,000 630,000 510,000 550,000 550,000 940,000
Solid waste (kg) CC 4,400 1,900 1,900 1,900 1,600 2,000 2,300 3,900
RPC 20,000 8,600 7,900 7,900 6,000 6,700 6,600 11,000
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Results – By Best/Worst Case
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Results – By Best/Worst Case
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Sensitivity Analysis
• Number of turns• Break and loss rate• Recycled content• Cleaning process• Travel distances
• Unit mass• OCC recovery rate• Recycled content• Biogenic carbon accounting
Corrugated Boxes RPCs
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Not Included in the Study
RPCs
• Wholesale distribution• Backhaul• Land use• Ecotoxicity and human
health• Produce perishability• Float
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The quantity of excess RPCs that exist in the total system to assure flexibility to respond to surges in system demand or extended time in the return loop.
Float
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Float Sensitivity at 100%
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Key Messages
• Study compares industry to industry
• No one system has an advantage in all categories
• Users must choose the impact categories that are most important to them
• Both systems have opportunities to improve
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• LCA Study• LCA Executive Summary• FAQs• Press Release
Comparative LCA Toolkit
https://www.corrugated.org/comparative-life-cycle-assessment/
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Questions?