While rainfall intensity and changing weather patterns play a significant role, there's an often-overlooked factor exacerbating these floods: plastic pollution.

Plastic pollution, stemming from improper disposal and littering, can have a direct and detrimental impact on flash floods. One of the most evident ways is through the blockage of drainage systems. When plastic waste accumulates in urban areas, it can clog drains, preventing them from efficiently channelling excess water away. During heavy rainfall, this blockage becomes a bottleneck, causing water to pool on streets and surfaces, ultimately elevating the risk of flash floods.

Furthermore, plastic waste, including bags and bottles, can infiltrate the soil and urban landscapes, reducing the ground's permeability. This means that the earth becomes less capable of absorbing rainfall, resulting in increased surface runoff. As a result, even moderate rainfall can quickly lead to flash flooding when plastic waste interferes with the natural absorption of water.

Beyond these immediate effects, plastic pollution also contaminates water bodies such as rivers and streams. This contamination can alter flow patterns and exacerbate flood risks during heavy rainfall events. Additionally, the long-term accumulation of plastic waste in water bodies and drainage systems can permanently modify the landscape's natural flow patterns, creating conditions conducive to flash floods even in periods of moderate rainfall.

At the Clean Technology Impact Lab, we recognise the urgency of these issues and have taken concrete steps, working on awareness programs about waste management, directly related to flash floods. Our recent initiative, PERMINDA, focuses on waste management, especially proper plastic disposal, which contributes to water pollution.

We also focus on converting waste-to-energy, the circular economy model, and measurable outcomes, aiming to target and empower our communities for a cleaner environment and planet.

Extensive education and awareness programs and research to address drainage systems are also in the pipeline, and our hope is that these initiatives will shape a future generation that is more aware and proactive in planning urban landscapes. It is expected that the ideas will attract the attention of fund providers and governance, leading to broader adoption.

Collaboration is crucial in tackling this issue. Together, we can move towards a Malaysia where flash floods are no longer a recurring nightmare but a distant memory. It's time to turn frustration into action and build a flood-resilient nation.

Dr. Praveena Nair is the Deputy Director of the Clean Technology Impact Lab at Taylor’s University, which develops innovative and sustainable technological solutions for water and energy challenges. Altogether, Taylor’s has introduced 11 Impact Labs to implement purpose learning across the university in its education, research, and advocacy, guided by the United Nations Sustainable Development Goals (UN SDGs).