How Effective Leadership Can Build Smarter, Sustainable Cities

As climate change and rapid urbanisation reshape the future of cities, sustainability leaders are being called upon to design solutions that balance environmental resilience with the needs of communities.

Chi Bui, Vice President at CPG Consultants, brings nearly 25 years of experience in integrated water resource management, water and ecological modeling, urban sustainability, and environmental planning. With expertise in FORTRAN, PASCAL, and VBA, she has led innovative, nature-based solutions across diverse infrastructure and environmental projects.

In this insightful interaction with Global Woman Leader, Chi shares her perspectives on sustainability-driven leadership, integrated water resource management, inclusive urban planning, women’s role in environmental decision-making, and the importance of building resilient, people-centric cities through collaboration and systems thinking.

Read the complete article for deeper insights.

Q1. In advancing integrated water resource management and ecological modeling, how have you redefined leadership through a sustainability lens, and what deeper responsibility do you believe women leaders carry today?

A. To me, leadership isn't about ticking boxes on a compliance checklist. The effective leadership requires shifting the focus from siloed tasks to integrated systems thinking. I have championed Nature-Based Solutions into my works, that move us away from traditional grey engineering toward 'living' engineering, where urban infrastructure serves as a platform for nature and humans to coexist.

I believe women leaders carry a deeper responsibility to advocate for the 'human heart' of our cities. While technical precision is vital, we often bring a perspective that considers how space impacts daily life and long-term well-being.

Our role is to ensure we don't build rigid, functional systems, but resilience spaces that protect both the environment and the people within it.

Q2. How did you establish authority and credibility early in your career, and what can women learn from that journey?

A. Authority and credibility are established by positioning oneself at the forefront as a role model, which is only possible when one has a genuine passion for work Early in my career, I focused on the core principles behind complex systems—identifying exactly who the project would benefit before attempting any execution. This ensured my solutions were grounded in data rather than just following standard design workflows. I constantly sought to understand the 'why' behind engineering.

The lesson for women is that technical excellence is your foundation. Credibility is earned through a combination of deep expertise and the courage to take on 'first-of-its-kind' projects. Do not shy away from the 'heavy lifting' of complexity or challenges. When we possess deep technical knowledge, we gain the confidence to lead high-level discussions with an evidence-based voice. Ultimately, credibility comes from being the person who understands the system best and provides the most effective solutions.

Q3. Working across water modeling, ecological systems, and urban planning, how do you approach balancing technical precision with inclusive, people-centered decision-making in leadership?

A. I approach the balance by treating technicality as the 'how' and people-centered decision as the 'why'. Ultimately, infrastructure must serve city residents and improve public welfare. While technicality and innovation are necessary for design, safety and efficiency, a project only achieves its true purpose if it remains accessible and useful to the wider community.

In complex projects, the effective leadership means translating technical metrics into understandable outcomes that reflect a community’s values. By integrating diverse perspectives, from planners to environmentalists, at the start of the design phase, we minimize technical silos solutions. This ensures the final solution is a sensible, engineering achievement and a welcoming place that enhances the daily lives of the community.

Q4. As a woman leading complex environmental and infrastructure projects, how have you influenced collaboration across cultures, disciplines, and stakeholders to drive sustainable impact at scale?

A. Driving impact at scale is never a solo effort. I believe that inclusive collaboration is far more powerful than individual vision. In our increasingly complex and dense cities, we can no longer build cities that merely manage problems. Instead, I influence collaboration by shifting our focus toward multifunctional infrastructure that restores the environment. I aligns architectural, environmental, and civil engineering lenses so that every design decision does no harm and gives nature back to the city.

Q5. In an era of climate urgency, what unique perspectives do women leaders bring to environmental planning and sustainability, and how can organizations better nurture and amplify these voices globally?

A. As environmental planning shifts from control to coexistence, the future city planning will no longer be about building a fixed road or new skyscrapers. Instead, it will be about creating adaptive systems that can grow and change as climate evolves.

For example, instead of just protecting a coast, we may ask: how can this coastal defense also serve as a nursery for biodiversity and a cooling lung for the city?  Women often bring a unique focus on the interdependencies of urban systems, i.e how a development in one area affects the other continuous ecological network to better nurture these voices, organizations must move away from siloed expertise and embrace integrated leadership while providing active mentorship and creating platforms that celebrate women-led initiatives. To amplify these voices globally, we must involve women in high-level policy discussions where their insights on connected thinking can reshape city resilience. 

Q6. Based on your journey, what advice would you offer to aspiring women leaders who want to create a meaningful impact in sustainability-driven industries?

A. My journey has taught me that to create a meaningful impact; we must embrace challenges rather than fear it. My primary advice is to love what you do, as passion is the only driver for truly transformative work. Don't be afraid to enter demanding fields. Stay curious and committed to upskilling is what allows you to lead with integrity in an evolving field. Second, be a strategic connector. In a world that is becoming more challenging, no one individual has all the answers. Success comes from the ability to foster collaboration across different disciplines. Finally, remember that leadership is about 'paying it forward'. Use our platform to mentor the next generation. True professional fulfillment comes from proving that even when designing our future cities, women lead with both heart and empathy.

Q7. During your recent presentation on Living Infrastructure for Dense Cities at Singapore International Water Week 2026, what key shift do you believe cities must make to transform infrastructure from serving urban growth to actively regenerating ecosystems?

A. The fundamental shift is moving from resisting nature to working with it, while integrating the flexibility component. Traditionally, urban infrastructure relied on single purpose, mainly concrete systems. To achieve true Living Infrastructure, dense cities must adopt four key principles. First, a District design forces us to think holistically about all components in a system and ensures they actively complement each other. Second, Infrastructure Stacking maintains multi-functionality and delivers multiple benefits within a single footprint. Third, Nature based solutions recognize that nature is the hard-working engineering that makes the system function. Finally, built-in flexibility allows us to factor an uncertain climate future that we may not be able to predict or capture correctly right now. By shifting to this integrated framework, infrastructure transforms from a hard core urban into a living asset that actively restores ecosystems while building long term urban resilience.

LAST WORD: As cities become denser and climate risks intensify, how can living infrastructure redefine the relationship between engineering, biodiversity, and community well-being, and what role should future leaders play in accelerating this transformation?

Cities are getting denser. Climate risks are intensifying. And the infrastructure we relied on for decades, it needs to evolve

For a long time, engineers are to solve one problem at a time. But now, we come to realise, these solutions weren't enough. Solving one problem often creates another somewhere else.

Living Infrastructure changed how I think about this.

Taking water infrastructure as example. We still manage water, but our design should go further. It should benefit to the wider ecosystem, filters water naturally, cools the neighbourhood, and gives residents a place to walk. When that happens, we stop seeing engineering and nature as opposites. They become partners.

And the community is the ultimate beneficiary. When people can see and feel the infrastructure, it becomes part of their daily lives. It improves lives by bringing nature back into the city.

Future leaders are not just the only one to make it happen.  It's planners, policymakers, community leaders, even residents. We all need to shift our mindset, and not waste the opportunity to build something that truly serves people. It is simply Living Infrastructure is for the community.