Lola Vallejo is Climate Special Advisor at IDDRI, and has been co-chairing the UNFCCC's Sharm el-Sheikh Mitigation Work Programme since March 2023.

She led IDDRI's climate programme from 2018 to 2024.

Prior to joining IDDRI, Lola supported international climate negotiations as manager of the OECD-IEA Climate Change Expert Group and led the OECD work on climate-resilient infrastructure. She also assessed the United Kingdom's adaptation policy as part of the national advisor and watchdog, the Committee on Climate Change. She also coordinated research on decarbonisation pathways at Imperial College London and worked as an environmental consultant in Paris.

She holds a finance Master's degree from Science Po and an Msc in Environmental Technology from Imperial College.