Senior consultant at Nomadéis, Leah Ball is a graduate of the University of Paris 1 Panthéon-Sorbonne, where she completed a master's degree in political science and international relations.Leah has strengthened her knowledge of environmental policies as a policy officer in the diplomatic cell of the Presidency of the Republic (preparation of COP21 and COP22 and other presidential trips). She then developed her skills as a project manager at the Nicolas Hulot Foundation (biodiversity thematic referent, My Positive Impact operation, monitoring, coordination of a large group of NGOs, etc.).As part of her work with Nomadéis, she contributed as a rapporteur to the Positive Planet's project of General statements of future generations, and in particular, coordinated the "environment" working group. Leah then supported the Ministry of the Armed Forces in the development of a methodology for identifying ecological vulnerabilities in Asia Pacific (definition of criteria, indicators, assessment methodology, etc.). She also participated in redefining the IUCN Centre for Mediterranean Cooperation’ strategic and operational framework (business plan) to maximize its influence and deploy biodiversity protection strategies in the area (identification of IUCN Med missions, identification of human and financial resources, cost and weakness analysis, governance proposal, roadmap, monitoring indicators, etc.). She also supported the Mohammed VI Foundation for the Protection of the Environment to strengthen two of its strategic axes on the basis of a shared and collaborative methodology: the protection of the coastline, particularly with regard to the fight against plastic pollution in the oceans, and the mobilization of young people, particularly in the context of climate policies.Leah also works with the Institut Véolia to write their journal FACTS Reports on indoor air quality issues (research of contributors, writing, coordination, modeling management).Leah has contributed to the writing of several prospective studies on various topics such as the links between sport and development for the French Agency for Development and the challenges of climate emergency for a large private group.Finally, Leah has a good overseas experience, having worked several times with the Economic, Social and Environmental Council of the Reunion Island Region to facilitate CESER's work and to develop strategic thinking and concrete actions on economic, social, environmental and shared territorial governance issues in Reunion Island.