Tearing down one small building in an American downtown can wipe out the entire environmental benefit of the last 1,344,000 aluminum cans that were recycled.

ReImagine a Greater Cleveland
Issues of vacancy, abandonment and foreclosure have had a profound effect on the well-being of the nation's neighborhoods and residents. These negative forces have mobilized community development professionals and policymakers in Cleveland to develop innovative efforts to turn the tide and fight for our neighborhoods.
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GreenCityBlueLake is the online home for the exciting people, projects, and ideas creating a more sustainable future in Northeast Ohio. Find out how you can make a donation or become a sponsor of the site.
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Outline
Introduction
The building sector in the 7-county area in 2005 contributed more than 29,000,000 tons of Carbon Dioxide equivalents, or 46% of Northeast Ohio's total CO2 emissions inventory.
Residential buildings make up 59% of the building footprint; commercial buildings make up the remaining 41%.
During Fall 2008 and early 2009, we held a series of work group meetings with building professionals in Northeast Ohio to better understand how we can make changes today and over the coming decades to significantly reduce the greenhouse gas emissions from our buildings. We have associated CO2 reduction targets to four broad goals:
Learn more about the emissions inventory here. Learn more about climate change and building trends, technologies and existing action plans in the background documentation section. Review the first workgroup presentation here.
Vision and background
Northeast Ohio becomes a leader in the construction and adoption of green building techniques, significantly reducing the energy use needed to construct and operate buildings while improving local communities and promoting local economic development activity.
Background
Nationwide, buildings account for approximately 43% of U.S CO2 emissions. In Northeast Ohio, the building sector accounts for approximately 46% of the 7 county region's CO2 emissions. Of the 43% of building emissions nationally, electricity use accounts for 71% of building CO2 emissions. In Northeast Ohio, electricity use makes up 58% of residential energy use and 73% of commercial building energy use.
A transition to cleaner forms of electricity generation has the potential to significantly reduce the building sector's electricity contribution to the region's carbon emissions. Recent trends, however, have seen electricity consumption grow year-over-year as more electrical devices are introduced into homes and offices, negating some of the impact of cleaner electricity sources and reinforcing the need to focus on energy efficiency. See the energy transition plan for more details background information and analysis.
The City of Akron, in its "Greenprint for Akron" report, sets overall CO2 emissions reduction targets for both the City and the community (from all sectors) of 5% by 2013, 10% by 2018, and 20% by 2025. Our action plan for Northeast Ohio sets forth a much more aggressive, yet realistic, path toward reducing CO2 emissions from the building sector by 50% (14,690,380 tons) by 2030 and 90% (26,442,683 tons) by 2050, using our 2005 carbon footprint data as the baseline.
National Trends
According to estimates from Architecture 2030, roughly 3/4 of the buildings in the United States will be new or significantly renovated by 2030. The estimated 75% of new and renovated buildings over the next 30 years provide a logical stepping off point to ensure that each new building and renovation in Northeast Ohio includes increased efficiencies. Since the vast majority of existing buildings will still be around in 2050, we will have to address the energy efficiency of exiting buildings as well as new construction.
Nationally, McGraw-Hill Construction estimates that green buildings made up 10 to 12% of all 2008 new commercial and institutional building starts by value. By 2013, MHC estimates that 20 to 25% of all new commercial and institutional building starts by value will be green buildings.
MHC estimates that nationally, 6 to 10% of new residential starts by value were green buildings and that this number will increase to 12 to 20% of new residential housing starts by value by 2013.
Northeast Ohio Residential Units
In Northeast Ohio, the residential sub-sector is responsible for 59% of the CO2 emissions from the overall building sector. This translates into 17,450,592 tons of CO2 emissions per year, or about 14 tons per housing unit in the 7 county region. In order to meet our climate goals, we need our residential buildings to emit 50% fewer CO2 emissions by 2030 and 90% fewer CO2 emissions by 2050.
Our climate action plan proposes eliminating 8,725,296 tons of CO2 emissions by 2030, or approximately 7 tons per housing unit. By 2050, we must eliminate 15,705,532 tons of CO2 regionwide from our residential housing sector, resulting in average housing unit CO2 emissions of 1.4 tons per housing unit per year, or 1,745,059 tons total CO2 emissions from the residential section in the 7 county region.
Our working groups determined that near to mid term, population growth and new residential construction rates in the region will likely fall below the national average. Census data also reveals that 79% of housing units in Northeast Ohio, just over 990,000 total units, are more than 30 years old. Both of these factors lead to an increased focus on strategies and activities for energy efficient building renovations and upgrades.

Regionwide, 6% or almost 75,000 of the housing units are vacant, 64% or 774,099 units are owner occupied and 29% or 353,303 are renter occupied. Cuyahoga, Summit, Portage, Lake and Lorain counties all have greater that 20% of the overall units renter occupied, suggesting that different strategies and outreach will be necessary to educate and incentivize renters to decrease energy use and to encourage landlords to invest in energy efficiency improvements. Conversely, Geauga and Medina counties have a much lower percentage of renter occupied homes. Efforts should be made in these counties to actively develop education programs, outreach and incentives that appeal to homeowners.

An analysis of heating sources for occupied homes in the 7 county region reveals that 83% of homes are heated with natural gas, 11% are heated with electricity, and 2% each are heated with bottled gas and fuel oils. Natural gas is a relatively cleaner burning fuel and releases less CO2 than many other fuel sources. The number of homes heated with solar energy of other fuels is 1%.

Northeast Ohio Commercial Sector
The commercial sub-sector in Northeast Ohio is responsible for 41% of the building sector CO2 emissions. This translates to 12,126,683 tons of CO2 emissions per year. In order to meet our climate goals, we need our commercial buildings to emit 50% fewer CO2 emissions--eliminating 6,063,342 tons--by 2030, and 90% fewer CO2 emissions--eliminating 10,914,015 tons--by 2050. How do we plan for the future where commercial buildings emit only 10% or 1,212,668 tons of CO2 emissions in 2050?
Nationally, more than 57% of energy use in commercial building energy use is consumed for heating and lighting. Cooling, water heating, ventilation and refrigeration are the next for largest consumption categories at 8% to 7% each. (EIA Chart)
Nationally, small commercial buildings, from 1001-5000 square feet, account for 53% of the building stock, but only 11% of total energy consumed by commercial buildings overall. Buildings larger than 500,000 square feet account for less than .2 percent of the building stock, but consume 14% of total energy. (EIA)
How are we going to accomplish aggressive CO2 reductions?
A number of strategies exist:
- zero energy new building goal;
- increased focus on passive survivability and deep energy retrofits of existing structures;
- better land use planning and building placement;
- local, state and federal policies and incentives; and
- aggressively promoting energy efficiency in all aspects of building operation and construction, including appliances, HVAC, lighting, and other plug loads.
Our working groups identified education of builders and consumers, affordability, increased availability of location-based and energy-efficient tied financing products and incentives, and availability of advanced building products as key factors to creating more energy efficient buildings in Northeast Ohio. The groups also determined that it was important to consider the entire lifecycle CO2 emissions from construction, materials and equipment, and not just electricty and natural gas consumed by the end user.
For most implementation and policy objectives, we have suggested a responsible party, time frame, and cost in the following format: [Responsible party, implementation timeframe, cost estimate].
Goal 1: Retrofit and renovate existing building stock.




Goal 2: Achieve aggressive energy reductions in new buildings.
Goal 3: Educate and improve occupant energy use behaviors.
Goal 4: Implement district-wide solutions and efficient land use planning.

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This site is inspired by the memory of Richard Shatten, a former board member of EcoCity Cleveland,
who pushed Northeast Ohio to think strategically about regionalism and sustainability.
A service of the GreenCityBlueLake Institute at the Cleveland Museum of Natural History.
Operating support provided by The George Gund Foundation.
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