Dr. Roxy Mathew Koll is a Climate Scientist at the Indian Institute of Tropical Meteorology. He did his Ph.D. in Ocean and Atmospheric Dynamics from Hokkaido University, Japan. Dr. Koll has made breakthrough contributions to observing and predicting the Indo-Pacific climate, facilitating the food, water, and economic security of the region. He led the redesign of the Indian Ocean Observation System and the development of the first climate model from South Asia—contributing to the science, monitoring, forecasts, and climate projections of the Indian Ocean rim countries. He is currently leading research on climate change and its impacts on the monsoon, cyclones, heatwaves, and the marine ecosystem. Dr. Koll is the Chair of the Indian Ocean Region Panel and a Lead Author of the IPCC Reports. He actively collaborates with citizen science networks, local governments, and media to bring science to society. Dr. Koll is among the top 2% scientists ranked by Stanford University. He was awarded the American Geophysical Union (AGU) Devendra Lal Medal for outstanding research in Earth and Space Sciences in 2022. The U.S. National Academy of Sciences awarded him the Kavli Fellowship in 2015 and the NRC Senior Research Fellowship in 2018. The Indian Meteorological Society felicitated him with the Young Scientist Award in 2016 for his research on the changes in the Monsoon.