We Build Climate Leaders
For those working in the built environment—real estate and construction companies, manufacturers, policymakers, and others—Mantle Developments provides technical and strategic climate support.
What sets us apart is our deep technical expertise in embodied carbon and our commitment to pragmatic innovation.
We are on a mission to decarbonize the built environment in the fight against climate change.
We work towards two inextricably linked goals: positive climate impact and successful business outcomes.
We love working with like-minded clients – those who want to do good but also want to be competitive and prepared for the future. Those who are willing to invest to thrive within this rapidly evolving industry. We provide the technical depth and breadth of experience of an outsourced sustainability department.
We challenge the status quo to help co-create a greener future.
We believe that if you can act, you should.
Climate Insights
Preserving Local Climate Leadership
A recent article in Canada’s National Observer outlines how Ontario’s Bill 17 could strip municipalities of their ability to enforce green building standards, threatening decades […]
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The Carbon Tax is Gone – Now What?
As of April 1st, 2025, Canada has effectively abolished its federal carbon tax system. While this move seems to have broad support, the medium- and […]
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Building Climate Leaders: Decarbonizing Construction
We’re excited to share that Ryan Zizzo, Founder & CEO of Mantle Developments, was featured in CanadianSME Small Business Magazine, discussing the urgent need to […]
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Carbon Impact of Low-Carbon Gypsum
The embodied carbon of buildings accounts for 11% of Canada’s emissions. Ongoing efforts to reduce emissions from steel and concrete need to be supplemented with […]
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Climate Projects
Integrating Life-cycle Assessment into Ontario’s Infrastructure Planning and Decision Making
We performed research, analysis and provided insights for consideration on strategies to integrate life cycle assessment (LCA) into future government infrastructure planning and decision-making. This […]
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Climate Resilience Strategy Development and Implementation
We helped develop the YMCA of Greater Toronto’s first Climate Resilience Strategy. This included outreach and education to various team members including senior management, the […]
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Net Zero Carbon Construction: Insights from the TD Future Cities Centre’s Net Zero Carbon Redevelopment
The TD Future Cities Centre located at Evergreen Brick Works, in Toronto’s Don Valley, is a model of true sustainable development. This report shares practical […]
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Embodied carbon management for office interiors renovation
We supported the low-carbon renovation of the Bentall Centre in downtown Vancouver through: Developing an embodied carbon procurement strategy and compared the embodied carbon of […]
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Nova Scotia Power Case Study: Increasing Power Utility Resilience Through Climate Change Scenario Analysis
The power sector and its infrastructure are increasingly exposed to physical climate risks and subject to short-term acute disruptions and longer-term chronic impacts reducing operational efficiency.
