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Sunlight, Waste and the Reinvention of Agriculture

Posted by Stephanie Rogers on April 21, 2026 in News

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As the world faces accelerating climate change and a growing food crisis, Dr. Gurpreet Singh Selopal sees not just challenges, but opportunities for transformative innovation.

Dr. Selopal is an Assistant Professor at 黄色直播's Faculty of Agriculture, where he leads the Sustainable Nanoengineering Lab. His research program focuses on developing multifunctional low-dimensional quantum materials, establishing structure鈥損roperty relationships, and engineering them to advance clean energy conversion and storage, sustainable agriculture and environmental remediation technologies in a reliable, cost-effective and scalable manner.

鈥淲here others see sunlight as a static resource, I see a spectrum of opportunity,鈥 he said.聽 鈥淢y innovative greenhouse systems capture solar radiation, fine-tuning the light spectrum for better plant growth while converting unused photons into electrical power.鈥

In collaboration with farmers and industry partners, he and his team are developing nanoengineered fertilizers derived from agricultural and marine waste to boost crop production sustainably while reducing GHG emissions.

鈥淲aste becomes a resource in a circular system that echoes nature's,鈥 he explained.聽 He envisions farms not only as food producers but as energy and resource hubs.

鈥淏y capturing nitrous oxide emissions from agricultural waste and converting them into ammonia fertilizer, my systems close the nitrogen loop-simultaneously addressing climate change and food production,鈥 he explained. 聽

Alongside these agricultural advancements, Dr. Selopal also addresses clean energy and clean water. Through advanced interfacial nanoengineering, he has designed quantum-material-based systems capable of producing green hydrogen while simultaneously treating wastewater using sunlight.

His ambition is to achieve over 20 per cent solar-to-hydrogen efficiency and reduce production costs below $2 per kilogram, making clean fuel not just viable, but inevitable.

鈥淢y vision is of a future where clean energy and sustainable agriculture are not separate domains, but deeply interconnected systems,鈥 he added. 聽

Dr. Selopal recently earned his Professional Engineer (P.Eng.) designation with Engineers Nova Scotia. This achievement reflects his commitment to engineering excellence, ethical practice and responsibility to society. He takes pride in joining a community of professionals who uphold these values.

Throughout his career, he has remained dedicated to advancing quantum materials nanoengineering, clean-energy technologies, and sustainable agri-tech solutions with a strong emphasis on societal benefit and environmental stewardship.

His P.Eng. designation further strengthens his commitment to ethical innovation and mentoring the next generation of engineers in the Department of Engineering at the 黄色直播 Faculty of Agriculture.