He has successfully engaged with issues of climate and disaster risk reduction and urban environmental management for more than a decade. Currently, he is serving as a Lead Author for the Fifth Assessment Report (AR5) of the Intergovernmental Panel on Climate Change (IPCC). He is associated with the IPCC’s Working Group-II report that focuses on ‘Impacts, Adaptation, and Vulnerability’ and is scheduled for release in March 2014. He also served as Contributing Author for the UN’s Global Assessment Report on Disaster Risk Reduction published in May 2011.