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PLAN: Dudley Square

Climate Readiness & Resiliency Workshop October 16, 2017


Climate Ready Boston is a plan to prepare the city for the impacts of future climate change.

Climate change means we will experience hotter days, higher seas, and more intense rain events in Boston. Last year the City released the Climate Ready Boston Report to better understand how Boston’s climate is going to change over time, what’s most at risk, and steps we can take to ensure our communities thrive in the future. Greenhouse Gases (CO2), Global Warming, and Climate Change

Cause

More build-up of CO2 in the Atmosphere

CO2

CO2 Build-up

2

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d-up

More Solar Radiation Absorbed by Earth’s Surface & Atmosphere

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More Heat is Trapped Effect

Cause

CO2 Producing Activities

2

Effect

Global Warming & Climate Change

PLAN: Dudley | Climate Readiness & Resiliency Workshop |  October 16, 2017


Background

Climate Change will impact neighborhoods differently depending on the context.

More Global Carbon Emissions More Local Climate Change

More hot days

Increased extreme precipitation

Greater amounts of sea level rise

Highest Impact to Dudley Square

Some Impact to Dudley Square

Less Impact to Dudley Square

Boston currently has an average of 11 days over 90 degrees, which could increase to 90 days by 2070.

By 2060 heavy rain events could regularly drop over 6 inches of rain in a 24 hour period; which is 20% more than what we see now.

Sea levels in Boston Harbor have risen 9 inches in the past 100 years and are expected to rise another 40� by 2070. 3


Greenhouse Gas reduction depends on energy efficiency and cleaner energy.

Since 2005, Boston’s greenhouse gas emissions (GHG) have declined by approximately 17 percent. Additionally, per capita emissions has decreased from 12.7 CO2e per person in 2005 to 9.5 in 2013. Boston’s goals are to reduce greenhouse gas emissions 25% by 2020 and to be carbon neutral by 2050. The greatest reduction so far has been from transitioning sources for electricity generation and heating.

Millions of Metric Tons of GHGe

Boston Greenhouse Gas (CO2) Emission Reduction Progress 2005-2013

8 6 2020 Emission Reduction Goal

4 2 0

Carbon Neutral by 2050

(0 net GHG emissions)

‘05

‘07

Co-gen Steam

Fuel Oil (Heating)

‘09 Natural Gas (Heating)

‘11

‘13

Gas & Diesel Electricity (Transportation)

Total GHG emissions 4

PLAN: Dudley | Climate Readiness & Resiliency Workshop |  October 16, 2017

Year


Climate Change Impact

Urban Heat Islands are concentrated in commercial districts like Dudley Square.

Existing Heat Island Intensity Borders of intensity are an estimation and are illustrative

Greater Heat Island Moderate Heat Island Some Heat Island Less Heat Island

0

500 ft

Increased temperatures and heat waves have greater effects on urban commercial districts like Dudley Square due to “heat islands�, or areas with more asphalt roads, dark roofs which absorb heat, and less tree canopy to provide shade. 5


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PLAN: Dudley | Climate Readiness & Resiliency Workshop |  October 16, 2017

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Green Site Infrastructure mitigate severe

impacts of weather events on the neighborhood. #3cba92

Use Permeable Surfaces & Water Retention Permeable pavement looks like normal pavement but allows water to go through and be absorbed by the ground below.

Promote Walkable and Bikeable Communities Wider sidewalks and improved bike lanes will create a safer and more enjoyable experience that will encourage people to walk and bike. 8

Create Multi-purpose Solutions Open space reduces the amount of heat absorbed and can also hold excess rainwater to slowly drain like in this outdoor amphitheater with drainage.

Increase Shade and Tree Canopy Street trees can provide a canopy that shades the street and sidewalks below. Trees can also help to reduce air pollution.

PLAN: Dudley | Climate Readiness & Resiliency Workshop |  October 16, 2017


Mitigation Strategy

Heat Islands

Stormwater Rising sea flooding levels

Infrastructure Strategies

Climate Change Impacts

GHG / Air Quality

LEED Certification Site Category • Sustainable Sites Use permeable surfaces and water retention, such as: • More green, open space • Permeable pavement • Rain garden & bioswales

Improve shade and tree canopy, such as: • Street trees • Sun shelters

Promote walkable and bikeable communities • Reduce car use and dependency • Electric Vehicles and clean fuels

Reduces Air Pollution

Carbon Mitigation

Build flood resistant sites • Raise site elevation • Ensure site & buildings remain accessible during floods Provide community emergency cool and warm rooms • Ensure community access to emergency, climate-controlled spaces to allow sheltering in place

9


Green Buildings create healthy and safe places while reducing their impact on the environment. #3cba92

Improve Energy Efficiency

Install Building Awnings

E+ Roxbury Townhouses use high-performing materials that reduce wasted energy.

Awnings overhanging on the sidewalk provide shelter and shade for pedestrians.

Install Cool Roofs

Install On-site Solar Electricity Generation and Storage

Green roofs or white, reflective roofs reduce the amount of heat absorbed by buildings.

10

Solar panels can reduce the need to rely on electricity produced by greenhouse gas emitting sources.

PLAN: Dudley | Climate Readiness & Resiliency Workshop |  October 16, 2017


Mitigation Strategy

Heat Islands

Stormwater Rising sea flooding levels

Building Strategies

Climate Change Impacts

GHG / Air Quality

LEED Certification Building Categories • Water efficiency; energy & atmosphere; materials & resources; indoor environmental quality; innovation & design Improve Energy efficiency • Insulating walls and windows • Allow for cross-breeze and natural ventilation • Use day lighting from windows and energy efficient LED lighting

Carbon Mitigation

Install cool roofs and building awnings • Reflective colored roofs • Awnings and window shading Improve water efficiency • Cisterns for irrigation • Storage tanks to increase infiltration and slow discharge in system. • Reduce wastewater with low flow fixtures Install on-site solar photovoltaic (PV) electricity generation and storage Improve indoor environmental quality • Reduce off-gassing materials • Improved ventilation, air filtration, and location of intake valves

Carbon Mitigation

Reduces Air Pollution

Build Flood Resistant Buildings • Plan for future adaptation and do not locate any critical building systems or equipment below

11


Regulatory Frameworks check to make sure developments are sustainable and resilient.

Climate Change Article 80 Checklist The Climate Change Checklist provides a framework for considering present and future climate conditions in assessing the environmental impacts and mitigation strategies of a proposed project. The Checklist focuses on greenhouse gas emissions, increased heat, more intense precipitation, and sea level rise. Green Building Article 37 Checklist The purpose of Zoning Article 37 Green Buildings is to ensure that major building projects are planned, designed, constructed, and managed to minimize adverse environmental impacts; to conserve natural resources; to promote sustainable development; and to enhance the quality of life in Boston. Projects are evaluated using the LEED building rating systems. Leadership in Energy & Environmental Design (LEED) The Leadership in Energy & Environmental Design rating system provides a holistic indication of the sustainability of a building across six categories, using a credit points system out of 100 to determine the rating. The levels are certified, silver, gold, and platinum.

To learn more visit: bit.ly/plandudley or contact Courtney Sharpe at 617.918.4431 Mayor Martin J. Walsh

Climate Readiness & Resiliency Booklet  

This booklet describes climate change risks and mitigation strategies

Climate Readiness & Resiliency Booklet  

This booklet describes climate change risks and mitigation strategies

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