Ploy Achakulwisut is a Research Fellow with SEI Asia. She contributes to SEI’s Carbon Lock-in Initiative, focusing on the climate, air pollution, and health impacts of fossil fuels and food systems. She serves as a coordinating lead author of the Production Gap Report series, which tracks the misalignment between governments’ planned fossil fuel production and the global levels consistent with the Paris Agreement. Her other research projects include evaluating the health impacts and inequities of air pollution from oil and gas production, and assessing the public health implications of low-carbon diets. Ploy joined the US Center of SEI in 2019 before transferring to the Asia Center in 2023. In 2020–2022, Ploy served as a working group member of the 2020–2022 Lancet Countdown US Policy Brief series.
Prior to joining SEI, Ploy was a postdoctoral scientist at The George Washington University, studying the urban-to-global health impacts of air pollution and climate change and the implications for sustainable development. She has also served as a SustainUS youth delegate to the 2014 United Nations climate negotiations, led campaigns to engage youth and academics in climate advocacy, and published op-eds in outlets including The Guardian, Mashable, and Scientific American. Her research and advocacy led to her being named in 2019 as one of the Grist 50 Fixers list.
Ploy holds BA and MSci degrees in natural sciences (chemistry) from the University of Cambridge, and MA and PhD degrees in atmospheric and climate sciences from Harvard University.