Leonidas Osvaldo Grardin is an Economist with a master's degree in environmental and Territorial Policies (University of Buenos Aires), as well as in economics with an orientation in Economic Development, International Trade and Employment (Di Tella University, Argentina). After getting his master's degrees, he did a post study in Environmental and Energy Economics (University of Comahue, Argentina). Currently, He is a Researcher of the Argentinian National Council on Science and Technology (CONICET) and a Senior Researcher at the Bariloche Foundation. His main field of activity consists of environmental economics, climate change economics and the relationship between development, economy, energy and environment. He was consultant at ECLAC, World Bank, IADB, UNDP, UNEP, among other international institutions and is Professor at many universities in Latin America besides Argentina. From 2008 to 2015, he was a member of the IPCC Bureau of the Task Force on Inventories, and the UN Expert Group on Technology Transfer from 2002 to 2005. Besides being a member of Working Groups of Argentina´s First and Second National Communications on Climate Change to UNFCCC as well as Argentina´s Representative in different meetings relating to Climate Change. Additionally, to his activities as an environmental economic adviser, researcher and University Professor, he is an author of many valuable articles, books, chapters, papers, documents and reports for national and international organizations such as the UNFCCC, ECLAC, World Bank and more.