Meeting Today's Sustainability Challenges: Carbon Footprinting and More...


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California has always been a leader in health and environmental initiatives; it was the first state to have a statewide smoking ban, and it has one of the strictest air pollution requirements in the U.S. after Assembly Bill 32 was passed in 2006. This mode of thinking has also carried over into the construction industry as well. The City of San Francisco is now contemplating requiring the carbon footprint be calculated for any new public building being built. In order for the concrete industry to calculate our carbon footprint, we need an easy to use tool that can be used accurately and reliably. Currently there are several international and domestic groups working on developing standards that concrete producers can use to develop the necessary tools that will be needed in the future. This presentation will highlight one such standard being developed by the Carbon Leadership Forum from the University of Washington and show how this standard is being used by a producer in the Bay Area to accurately report their carbon footprint.

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Meeting Today's Sustainability Challenges: Carbon Footprinting and More...

  1. 1. Meeting Today‟s SustainabilityChallenges: CarbonFootprinting and More… Ryan Henkensiefken USC Technologies National Research Laboratory of U.S. Concrete
  2. 2. Agenda  Sustainable Development Today  California‟s Leadership  The Rise of City Standards  The Dilemma: How do you know if the standards are being met?  The Need for Effective Measurement, Comparison and Certification  A Closer Look  Carbon Calculator  EPD Initiative  Meeting the ChallengePage 2
  3. 3. Sustainable Development Today  Sustainable construction is not a passing fad  Membership in the U.S. Green Building Council has increased from fewer than 100 to over 18,000 in the past decade  Over 155,000 building professionals are LEED certified  Demand for “green building materials” is forecasted to grow at an accelerated ratePage 3
  4. 4. LEED Certified Structures Source: US Green Building CouncilPage 4
  5. 5. Demand for Sustainable Construction MaterialsPage 5
  6. 6. California‟s Leadership The Governors Green Building Action Plan B-18-12  Highlights:  “State agencies, departments … reduce “California entity-wide GHG emissions by at least 10% by 2015 and 20% by 2020…” companies have  “All new State buildings and major always been trail renovations beginning design after 2025 shall be constructed as Zero Net Energy” blazers” Dan Geiger  New & major renovated State buildings USGBC-NCC and build-to-suit leases larger than 10,000 square feet shall obtain LEED „silver‟ certification or higher …” CaliforniaPage 6
  7. 7. The Rise of City Standards Sample Standards  Buildings have performance equivalent to an Energy Star rating of at least 60-75  New residential & commercial construction to exceed Title 24 energy efficiency standards  Adopt and implement local green building ordinance of program setting minimum standards  Provide incentives to private developments to meet or exceed specified standards under Build It Green, LEED, or similarPage 7
  8. 8. San Francisco – A Closer LookPage 8
  9. 9. San Francisco – A Closer Look Source: Rich Chien, IFMA Presentation April 14, 2011Page 9
  10. 10. San Francisco – A Closer Look Source: Rich Chien, IFMA Presentation April 14, 2011Page 10
  11. 11. San Francisco – A Closer Look  Leading by Example and Achieving Results  Named World‟s Greenest City by World Green Building Council  GHG emissions nearly 12% below 1990 levels Laguna Honda Hospital, the first  Has surpassed international and hospital in CA to achieve LEED Silver statewide emissions target  Example: CA requires 50% construction debris be diverted from landfill (recycle/reduce); SF requires 75%  Recently established target: reduce carbon emissions to 20% below 1990 levels by year end, by 80% by 2020 The iconic Transamerica building was the first building to comply with SF‟s renovation standardsPage 11
  12. 12. The Need for Effective Measurement, Comparison and Certification Lifecycle Assessment Measurement, Comparison and Certification Tools:  Deliver insight and certainty LCA  Analyze key characteristics: carbon, water, costs and waste  Measure & report alignment with standards => Carbon Disclosure Project (CDP), Global Reporting Initiatives (GRI), GHG Protocols, Architecture 2030, California standards...  Critical foundation for creating Environmental Carbon Accounting Tool Product Declarations (EPDs)  Data delivers LEED process clarity  Provide reliable tools for effective decision making  Yields real environmental performance measuresPage 12
  13. 13. A Closer Look: Carbon Calculator The executive dashboard from Climate Earth allows Central Concrete to track the key sustainability metrics that we established up front – GHG and water – both critically strategic to our long-term success.Page 13
  14. 14. Example: Measuring Enterprise, Supply Chain and 18,000 Product Mix Combinations Raw Material Supply- Upstream Process NATURAL CRUSHED CEMENT SCM WATER ADD-MIXTURES AGGREGATE AGGREGATE Quarry Quarry Material Input Waste Input Varies Waste Input Sort Crush Crush/grind Material Input One Sort Clinker production Process Material Input Cubic handling Handle grinding Processing Yard packaging + Transportation Concrete Production: Core Processes Purchased Site Generated Natural Diesel Batch Water Electricity Renewable Gas Purchased Site Generated Bio Electricity Fuel Oil Wash Water Based Electricity Green Grid Transportation to Construction Site LEGEND Use Phase Included End of Life ExcludedPage 14
  15. 15. Example: Selecting Optimal Products for Your CustomerPage 15
  16. 16. Example: Superior Information for the CustomerPage 16
  17. 17. Example: Develop and Document Higher Performing Products Data provides evidence that U.S. Concrete’s low-CO2 mixes offer superior strength over traditional concretePage 17
  18. 18. Carbon Footprint (pounds/cubic yard) Easily understood data provides impactful information on GHG impactPage 18
  19. 19. Environmental Product Declarations (EPD)Page 19
  20. 20. Why EPDs? Allows for Comparisons  Why Bother?  Building owners asking for EPDs => Must report your carbon footprint  Required by Architecture 2030 => Building Challenge  LEED 2012 Helps Prevent => New credits for EPDs => New credits for LCA  Product Category Rules (PCPRs) are being developed => They will set the protocols for reporting and validating the environmental impacts in the EPDPage 20
  21. 21. Meeting The Challenge Establish Adopt and make Use Initiatives to: Sustainability informed decisions  Improve effectiveness via new tools and  Establish completive Initiatives methodology  Respond to shifting demands  Reduce costs  Increase revenue  Manage risk LCAPage 21
  22. 22. Thank you Ryan Henkensiefken USC Technologies National Research Laboratory of U.S. Concrete