Dayanath et al. (2026): Microalgae-Based Direct Air Capture Systems for Carbon Dioxide Emission Reductions in Developing Megacities: A Techno-Economic and Policy Analysis
W.M.S. Dayanath, I.M.S.K. Ilankoon, Shafeeq Ahmed Syed Ali, Meng Nan Chong, Su Chern Foo, IN: Journal of Environmental Chemical Engineering, https://doi.org/10.1016/j.jece.2026.122763
The dense urban population and subsequent residential activities significantly drive carbon emissions in megacities. Developing megacities face additional challenges due to technological gaps and financial constraints, making it difficult to implement effective COâ‚‚ capture infrastructure. Existing solutions, such as conventional direct air capture (DAC) and urban tree planting, are often hindered by high energy demands and limited space, rendering them less practical for these densely populated megacities. This article analyses the state-of-the-art of microalgae-based DAC systems, including economic and policy assessments to aid in urban carbon sequestration in developing megacities.