Earth Day has always been a moment for reflection and in 2026 this calls for something more: resolve.
Structural engineers shape the built environment and work to support public benefit. Every decision we make - material, analytical, ethical - carries consequences that extend far beyond the lifespan of any single project. Our choices influence decarbonisation routes, communities and the inheritance we leave to future generations.
The Institution has developed a comprehensive suite of climate‑mitigation resources that sit at the heart of responsible structural engineering practice.
As IStructE’s President, I encourage members to engage with these resources as a roadmap for the sustainable transformation our sector must lead, we all have a responsibility to turn guidance into action.
Prioritising low‑carbon design from first principles
Our climate emergency five volume package and net zero carbon guidance have reshaped what “good engineering” means. They ask us to begin every project with a simple but profound question:
How can we achieve this outcome with the least carbon impact?
This requires us to:
These principles are no longer aspirational. They are the baseline for responsible practice.
The following tools are a useful guide to how we can make positive changes for sector and our planet today:
Re‑use, adaptation and the circular economy
One of the most powerful levers we have is to apply to extending the life of buildings that already exist. Our guidance on structural re‑use and circularity emphasises that the most sustainable building is often the one that is already standing.
Measures we recommend:
This shift demands creativity and collaboration - but it unlocks extraordinary carbon savings.
For deeper insights, explore:
Carbon assessment as standard practice
Our “How to calculate embodied carbon” guidance, has helped embed carbon literacy into the core of structural engineering. It equips engineers to quantify emissions across the entire lifecycle - from extraction to end‑of‑life - and to use that data to drive better decisions.
As President, I am committed to ensuring that:
We cannot manage what we do not measure.
Competency, ethics, and professional leadership
Our “Five years of Action” reminds us that climate mitigation is not just technical — it is ethical. Engineers must be competent in climate‑aware design, transparent about carbon impacts, and willing to challenge decisions that undermine sustainability.
This means:
Leadership is not a title. It is a practice.
A call to action for Earth Day 2026, our Power, our Planet.
This Earth Day, I invite structural engineers across the globe to reflect on the influence we hold. Our profession has always been defined by ingenuity, rigour, and service to society. Today, that service demands that we place climate mitigation at the centre of our practice, and that we encourage others to centralise this focus in the core of their delivery.
The guidance exists. The tools exist. The urgency is undeniable.
What remains is our collective commitment to act—with courage, with integrity, and with the long‑term wellbeing of our planet in mind.
Together, we can ensure that the structures we design today support a thriving, resilient world tomorrow.
Professor Brian Uy
President, The Institution of Structural Engineers