Maria Jose (Pepa) Lopez holds a chemistry degree and a master in environmental engineering and management and has over 20 years’ experience in environmental research and consultancy. Her main areas of expertise are greenhouse gas (GHG) emissions, policy studies and implementation studies based on ex-ante and ex-post evaluations. She is UNFCCC lead reviewer of GHG emissions inventories (specialist in energy and industrial processes), national communications and biennial reports (specialist in climate finance flows and policies, measures and targets) and co-lead in the technical analysis of biennial update reports.