How can used coffee grounds fuel the growth of crops tomorrow? Vertical Farming is a modern farming method which is less labour-intensive, and can produce 10 times more than traditional farming. This opens new opportunities for urban areas with limited space for food production, such as Singapore. Nevertheless, nutrients remain a major challenge for modern vertical farming. There is, however, a surprising contender to overcome this – used coffee grounds! In this talk, we will share some aspects of our R&D efforts in the valorisation of spent coffee into liquid organic nutrients. // About the Speaker: Dr Goh Chee Keong is presently a Conexus Senior Manager who spearheads R&D efforts at Republic Polytechnic’s Environmental Technology Centre (ETC). Dr Goh has a proven track record in leading research groups with extensive works in waste and water management solutions, which are currently supported by major government funds. He is actively contributing in scientific and industrial research to develop technologies and solutions to tackle challenges posed by increasing waste generation, scarcity of resources and land constraints for waste and water management, in a move that will support the nation's zero waste goal. Due to his great R&D contributions in creating greater urban sustainability and liveability, he was recently awarded the Ministry of Education (MOE) Innergy’s Outstanding Innovator Award 2019 and the Public Sector Transformation (PST)’s Exemplary Innovator Award 2020. // About Down to Earth: Expert Talks: In this series, researchers from Republic Polytechnic will share their inspirations for research and the focus and scope of work in their projects. The impact of their research to improve people's lives will also be share