How To Handle Sustainability Risk In Impact Investing. As Head of Sustainability at 2150, the largest impact and proptech VC in the Nordics, London-based Peter Hirsch can speak to the opportunities the VC community sees in investing in companies shaping the future of our built environment, while addressing growing risks related to sustainability performance. Before joining 2150, Peter worked at the European Bank for Reconstruction and Development supporting green investments and planning for cities and corporates.