Marinel Ubaldo is a Registered Social Worker and one of the Founders of the Youth Leaders for Environmental Action Federation, a youth-led organisation based that aims to mentor youth individuals in climate advocacy. She is currently the Philippine Country Coordinator for UN COY16 Glasgow while co-leading the implementation of the Local Conference of Youth 2021. She also serves as the Philippine Focal Point for Climate Science Olympiad. Marinel has been actively involved in educating communities about climate change and the roles they can take to adapt and mitigate its effects. She has spoken to world leaders on behalf of Filipinos during the opening of the UNFCCC COP 21 in Paris and in UNFCCC COP 25 in Madrid. She has been trained by former US Vice-President Al Gore as a Climate Reality Leader. She has been building impactful campaigns, forming strong collaborations with the government, social and environmental organisations, and the youth.