He has worked as an environmental consultant for both public and private clients such as the World Bank, Interamerican Development Bank (IDB), the Department for International Development of the British Government or the Basque Government.
During July 2005 and May 2009, he was the Deputy Minister for the Environment of the Basque Government, Executive Vice-president of the Environmental Public Society IHOBE and Member of the Board of the Basque Energy Board (EVE). He has been actively participating in COPs from 2005.
In 2009 he joined the Basque Centre for Climate Change (BC3) in 2009 as Research Professor. He is currently coordinator of the Climate Policy Research Line at BC3 and leader of the Adaptation research group that aims to bring together adaptation economics and adaptation policy. He has published more than 40 research papers and 14 book chapters and actively contributed to more than 12 international research projects.