Kavishan Ranatunga: Volcanic Pumice: A Pathway to Low-Carbon Concrete for a Sustainable Aotearoa

<p dir="ltr">This image represents the fusion of traditional wisdom and modern engineering. At the centre lies a concrete cube — symbolising the strength and foundation of modern construction. Surrounding it are pumice rocks from Aotearoa’s volcanic lands, showing how local materials can replace cement to reduce carbon emissions by around 20%. The background reflects Māori engineering principles of kaitiakitanga (guardianship) and whakapapa (connection to the land), reminding us that sustainable innovation is rooted in respect for nature. Together, they illustrate a pathway towards low-carbon, locally inspired concrete for a sustainable future.</p>