Should the Construction Industry Declare a Climate Emergency?

Should the Construction Industry Declare a Climate Emergency?

The construction sector stands at the crossroads of climate responsibility, given its critical role in shaping the world’s infrastructure and its enormous environmental footprint. The discussion about whether the industry should declare a climate emergency has moved beyond theoretical debate—prompted by emissions data, global activism, and growing sectoral commitments. This article explores the sector’s impact, declarations of emergency, arguments for and against such a declaration, and the crucial steps needed for genuine systemic change.

The Construction Industry’s Carbon Footprint

The global construction sector is responsible for approximately 39% of annual carbon emissions. This figure includes both operational carbon (the energy used to run buildings) and embodied carbon (the energy and emissions embedded in materials and construction processes). Key elements contributing to this impact include:

• Material production (concrete, steel, glass—highly energy-intensive processes)
• Design and construction choices with long-lasting consequences for energy consumption and land use
• Urban expansion and infrastructure development accelerating habitat loss and greenhouse gas generation

With urbanization expanding and populations growing, the repercussions of business-as-usual in the industry are ever-increasing. Efforts to confront these realities require not only greater efficiency but a transformation of the relationship between construction, natural systems, and resource use.

What Does Declaring a Climate Emergency Mean?

Declaring a climate emergency is a formal recognition that climate change represents an immediate existential threat and that urgent action is required within and beyond the construction industry. Unlike general sustainability goals, a declaration:

• Signals public acknowledgment of the crisis by organizations, companies, or professional associations
• Demands the sector sets ambitious, transparent targets for emissions reduction and biodiversity protection
• Requires accountability, transparent annual reporting, and alignment of practice and procurement with climate science
• Creates a united front, amplifying calls for systemic change and policy reforms at every level

The process goes beyond symbolic language: It aims to catalyze sector-wide shifts—not only in how buildings are planned and constructed but in how professionals see their roles as stewards of planetary health.

The Declarations Movement: Architects, Engineers, and Contractors

Since 2019, a global movement has emerged across the built environment professions. Leading the charge are collective declarations by architects, engineers, and contractors:

• Built Environment Declares: Unites architectural, engineering, and construction professionals in a public declaration and commitment to concrete action.
• Architects Declare, Engineers Declare, and Contractors Declare: Sector-specific petitions that articulate the urgency of climate and biodiversity emergencies, together representing thousands of practices and firms globally.

These declarations emphasize:

• The limited timeframe to avoid catastrophic climate impacts (“just over a decade” left to act decisively)
• The need for radical behavior shifts, not incremental change, to stay within the Earth’s ecological boundaries
• International cooperation, open-source knowledge sharing, and strong advocacy to influence government policy

Examples of implementation include the UK Green Building Council’s Climate Commitment Platform, the Construction Playbook in the UK, and design guides such as the London Energy Transformation Initiative’s Climate Emergency Design Guide, each setting new standards for low-carbon and regenerative design.

Arguments for Declaring a Climate Emergency

Advocates argue that a formal declaration by the construction industry is not only ethically necessary but strategically advantageous. Key benefits include:

• Accountability and transparency: Declarations create clear frameworks for progress tracking and annual reporting.
• Market leadership: Early adopters can set new industry norms, influencing supply chains, investors, and policymakers.
• Collaboration boost: Shared commitments increase trust and drive coalitions across the value chain.
• Policy influence: A united industry voice is better able to push for regulation and incentives supporting net-zero emissions and sustainable procurement.
• Biodiversity and social benefit: Declarations go beyond carbon, addressing land use, habitat loss, integrated resource management, and health outcomes.
• Future proofing: Aligns operations and investments with rapidly evolving ESG (Environmental, Social, and Governance) requirements and emerging legal mandates.

Recent Initiatives and Strategies

• Launch of the Construction Playbook to improve procurement in line with net-zero ambitions.
• TCFD-aligned reporting for financial risk disclosure around climate change becoming mandatory in several regions.
• Circular economy roadmaps and flagship net-zero projects being established in major cities worldwide.

Arguments Against or Challenges

Not all stakeholders agree that public declarations are the most effective approach. Some of the reservations, obstacles, or critiques include:

• Risk of “greenwashing”: If not backed by measurable targets and transparent reporting, declarations may be seen as PR moves or box-ticking exercises.
• Lack of enforcement: Declarations are voluntary; without mandatory regulation and external scrutiny, change may be slow or inconsistent.
• Systemic inertia: Decades of established construction practices, financing, zoning laws, and client expectations create inertia that declarations alone may not overcome.
• Fragmented accountability: With so many actors—clients, contractors, suppliers, regulators—diffuse responsibility can delay comprehensive action.
• Economic pressures: Tight margins and cost-competitive tendering can make investment in low-carbon practices challenging without client buy-in or regulatory support.
• Supply chain barriers: Sustainable materials can be scarce, expensive, or poorly understood at scale, limiting rapid change.

Despite these challenges, most critics agree that without greater urgency and holistic reform, the sector will remain a major obstacle to global climate goals.

Paradigm Shifts Required in the Built Environment

Whether through formal declaration or practical reforms, a deep transformation is necessary in how buildings and infrastructure are conceived:

• Rethinking Design: From single-objective (cost/speed) to multi-objective (zero-carbon, regenerative, socially inclusive).
• Prioritizing Whole-Life Carbon: Measuring and reducing both operational and embodied emissions, not just short-term energy use.
• Integrating Biodiversity: Ensuring construction protects and renews natural habitats, aligned with life-cycle thinking.
• Circular Economy: Designing for reuse, adaptability, material recovery, and minimal waste throughout a building’s lifespan.
• Community and Resilience: Creating spaces resilient to climate hazards—heat, flooding, etc.—and serving societal well-being.

Innovative guides like the LETI Climate Emergency Design Guide provide practical methodologies and criteria for different building types, fostering knowledge sharing and benchmarking.

Systemic Barriers and How to Overcome Them

The industry faces entrenched obstacles that declarations alone cannot resolve:

• Legal and financial structures often reward lowest upfront cost instead of long-term sustainability.
• Outdated regulations and codes that fail to promote or even allow truly zero-carbon designs.
• Poor integration between disciplines, slowing innovation and system-level optimization.
• Shortage of skills and training in low-carbon construction, systems thinking, and life-cycle assessment.
• Data gaps around building performance, materials sourcing, and actual versus modeled carbon impacts.

What Needs to Happen Next?

While declarations are critical for mobilizing action, they must be accompanied by robust follow-through. The next steps for the sector include:

• Adopting science-based targets and pathways in line with national and international climate commitments
• Mandating transparent, annual climate and biodiversity impact reporting for all major actors
• Building sector-wide training programs in carbon literacy, regenerative design, and circular business models
• Strengthening cross-sector and multi-stakeholder collaboration, including clients, financiers, planners, and communities
• Piloting and scaling up net-zero projects to demonstrate best practice and lower barriers for adoption

In addition, cities and industry leaders are called upon to ensure at least one net-zero emission flagship project by 2025 and to report on progress toward these goals each year.

Frequently Asked Questions (FAQs)

Q: Why is the construction industry’s carbon impact so significant?

A: The sector not only consumes energy during building use but also emits significant carbon during material production, transport, demolition, and land use changes. 39% of global annual carbon emissions are linked to construction and buildings.

Q: What’s the difference between embodied carbon and operational carbon?

A: Operational carbon refers to emissions from energy required to run a building (heating, cooling, lighting). Embodied carbon includes emissions from material manufacturing, transport, and the construction process itself.

Q: What does a climate emergency declaration commit an organization to?

A: A public commitment to rapid emissions reduction, biodiversity protection, transparent progress reporting, and advocating for policy changes supporting systemic transformation.

Q: How do declarations lead to real change?

A: Where backed by targets, reporting, and action plans, declarations create peer pressure, enable coalition-building, drive transparency, and help secure public and private investment for innovation.

Q: What role can governments and clients play in supporting the transition?

A: By updating codes and incentives, mandating climate disclosure, prioritizing low-carbon procurement, and supporting demonstration projects, public leaders and major clients can accelerate industry-wide transformation.

References

• “Climate change and the construction industry – Clyde & Co”
• “Built Environment Declares Climate and Biodiversity Emergency”
• “Engineers Declare Climate and Biodiversity Emergency”
• “Climate Emergency Design Guide – LETI”
• “C40 Clean Construction Declaration”
• “Climate emergency – The Institution of Structural Engineers”
• “AIA California Declares a Climate Emergency”