IGCC Secretariat

Emma Herd

Chief Executive Officer

Emma Herd has been Chief Executive Officer at the Investor Group on Climate Change since August 2015. Emma has worked in climate change, sustainability, public policy and finance for almost twenty years.

Prior to IGCC, Emma spent 15 years at Westpac Banking Corporation where she worked at the vanguard of climate change and finance. She held a range of roles across carbon finance and emissions trading, ESG Risk assessment, public policy and advocacy, sustainability strategy development and corporate affairs across Westpac Institutional Bank and Westpac Banking Corporation. She started her career working in Parliamentary Committees (Senate and House of Representatives) in Parliament House, Canberra.

Emma is a Non-Executive Director of the Carbon Market Institute and a member of the Queensland Climate Change Advisory Council. She holds a Bachelor of Asian Studies (Thai) Hons.

Crystal Fleming

General Manager

Crystal has been with IGCC since it was formally established as an office in 2009, and has seen the organisation expand its influence and membership since that time.

Crystal overseas IGCC’s ongoing operations, and has lead responsibility for the development of the climate change adaptation and resilience stream of work.  Crystal has held various roles within the organisation, including research and analysis, member services and financial administration, communications and outreach.  Crystal managed the early establishment of the Carbon Disclosure Project in Australia and New Zealand

Crystal previously worked at the NSW Attorney General’s Department; the Centre for Research Management, National Health and Medical Research Council; and Creative Executive and Business Risk Consultants. Crystal has BA (Gender Studies, Arabic Language & Literature and Psychology), has qualifications in Carbon Management and Marketing and is part way through a Masters of Sustainability.

Rebecca Mikula-Wright

Director, AIGCC and IGCC Investor Initiatives

Rebecca has been working as a consultant with the Investor Group on Climate Change since 2012 as Project Director.

Rebecca supported the reestablishment of the Asia Investor Group on Climate Change in 2016, and has continued to manage the AIGCC secretariat and the group’s ongoing stream of work. She has led various projects for IGCC such as the IGCC 2015 Summit, Trustee Training on Climate Change, Low Carbon Investment Registry and sector reports on risks and opportunities of climate change.

Rebecca was previously the General Manager of ASrIA (Asia RI Association) after working at Nomura in Equity Research and BlackRock in Hong Kong. She was a senior credit analyst with Exxon Mobil in Prague and started her career in derivatives with JP Morgan. Rebecca has served several years on the voluntary board of The Orangutan Project, that works on direct orangutan and habitat conservation in Indonesia. Rebecca holds a BA (Asian Studies, Japanese) and is part way through an MBA.


Michael Mazengarb

Policy Officer

Michael has been the Policy Officer with the Investor Group on Climate Change since December 2017.

Michael has previously worked in various roles in Federal climate and energy policy, including with the Clean Energy Regulator and the Australian Renewable Energy Agency. In these roles, Michael worked on the design and implementation of the Carbon Price Mechanism and the Renewable Energy Target. Michael has also served as a Ministerial Advisor for Climate Change and Sustainability.

Michael holds a Bachelor of Science (Physics, Climate Change Science and Policy) and has served on the board of environmental NGOs and as a journalist on international climate change negotiations.