Muireann is the Global Head of Sustainability Strategy at Hartree Partners, an international energy & commodities trading firm. In this role she leads the development of new sustainability and decarbonisation-focused business activities, including environmental products trading and climate investments. With nearly 15 years of experience across corporate strategy, sustainability, and carbon markets, Muireann has worked extensively with companies and governments on their approaches to decarbonisation and energy transition. She is a director in Hartree’s VC to growth equity energy transition fund and a member of the firm’s ESG Committee. Previously she was at the World Economic Forum, South Pole, and Deloitte. Muireann holds an MSc in Environmental Economics & Climate Change from the London School of Economics, and a BA in International Studies from Johns Hopkins University.