Hotta is currently a theme leader of theme 3 "Policy Shift towards Sufficiency Approach Aiming to Satisfy Needs under Environmental and Resource Constraints in Asia" of S-16 research project funded by Environment Research and Technology Development Fund. He specializes in policy analysis on environmental policy, recycling and waste management, and SCP.
Hotta received Dphil (PhD) in International Relations from University of Sussex in 2004. Before joining IGES in September 2005, he was a project assistant of UNU/Zero Emissions Research Initiative at United Nations University/Institute for Advanced Studies Contracted Researcher (Industrial Policy Area), Mitsubishi Research Institute, Inc.
He has been involved in both policy initiatives and research projects in relation to sustainable resource circulation such as G8’s 3R Initiative, Working Group for 3R Policies for Southeast and East Asia at Economic Research Institute for ASEAN and East Asia (ERIA), and drafting committee of State of the 3Rs in Asia and the Pacific of Regional 3R Forum in Asia and the Pacific.