Who we are

The Hon Matt Kean - Chair

Mr Kean was appointed as Chair of the Authority on 5 August 2024 for a term of 5 years. He was the NSW Member for Hornsby from 2011 until 2 August 2024. 

Mr Kean was most recently the NSW Government Shadow Minister for Health. He was Deputy Leader of the NSW Liberal Party from August 2022 until March 2023. Throughout his 13-year political career, Mr Kean also held the ministries of Innovation and Better Regulation, Treasury, Energy and Environment. 

As Treasurer and Energy Minister of NSW, Mr Kean championed climate action that is in the best interests of households and businesses. In 2020, he delivered the Electricity Infrastructure Roadmap, a 20-year plan for NSW’s energy infrastructure. The roadmap spurs private investment in renewable energy while reducing emissions and power bills for the people of NSW.

Mr Kean commenced in the role of Director, Regulatory Affairs and Strategic Partnerships at Wollemi Capital on 15 August 2024.

Mr Kean studied business at the University of Technology Sydney. 

Dr Virginia Marshall - Member

Dr Marshall was appointed as a member of the Authority on 15 September 2022 for a term of 5 years.

Dr Marshall is the Inaugural Indigenous Postdoctoral Fellow with the Australian National University's School of Regulation and Global Governance (RegNet) and the Fenner School of Environment and Society. She is a practising lawyer and duty solicitor, a former Associate & researcher with the Federal Court of Australia in Sydney and professional member of the NSW Law Society and Women Lawyers Association of NSW. Dr Marshall was Senior Legal Officer of the Australian Law Reform Commission and inquiry into 'Family Violence & Commonwealth Laws: Improving Legal Frameworks' (ALRC 117), Executive Officer of the NSW Government's Aboriginal Water Trust and a criminal defence lawyer with NSW Legal Aid.

Dr Marshall is the winner of the WEH Stanner Award for the best thesis by an Indigenous author, titled 'A web of Aboriginal water rights: Examining the competing Aboriginal claim for water property rights and interests in Australia'. This work was published as ‘Overturning Aqua Nullius: Securing Aboriginal Water Rights’ (2017) with the foreword by the Hon. Michael Kirby.

She is also a lifetime member of the Golden Key International Honour Society and magistrate for the NSW Law Society's 'Mock Trial Competition'. Dr Marshall is in demand as a keynote speaker on Indigenous water law and governance, Indigenous traditional knowledge systems and the intersectionality of western intellectual property regimes and the Indigenous commercialisation of native foods and medicines.

Dr Marshall is Lead Chief Investigator with an ARC Discovery Indigenous Grant (2022-2024), ’Barriers & Pathways to development of Indigenous traditional medicines’ to unlock the significant, untapped potential for Indigenous Australians to benefit from the development of their traditional medicines regulated by the TGA.

Professor Lesley Hughes - Member

Professor Hughes was appointed as a member of the Authority on 15 September 2022 for a term of 5 years. She is an academic ecologist and climate change scientist. She is the former Interim Executive Dean of the Faculty of Science & Engineering at Macquarie University. Her research has focused on the impacts of climate change on species and ecosystems.

Professor Hughes is Professor Emerita and Pro-Chancellor at Macquarie University. She has been a Climate Councillor with the Climate Council since 2013 and a Director since 2021, and is also a member of the Wentworth Group of Concerned Scientists. She is a former Lead Author for the Intergovernmental Panel on Climate Change Fourth and Fifth Assessment Reports. 

Other roles have included: Pro Vice-Chancellor (Research Integrity and Development at Macquarie University (2014-2022); Director of the Biodiversity Node, NSW Office of Environment & Heritage Climate Adaptation Research Hub; Commissioner in the Australian Government’s Climate Commission (2011-2013); Director WWF-Australia (2013-2021); Head of the Department of Biological Sciences at Macquarie University (2009-2011); Chair of the Tasmanian Climate Action Council (2012-2014); Co-director of the Climate Futures Research Centre at Macquarie University (2012-2014) and Co-convenor of the Terrestrial Biodiversity Adaptation Research Network for National Climate Change Adaptation Research Facility (2009-2013). 

Ms Fiona Simson - Member

Ms Simson was appointed to the Authority on 15 March 2024 for a period of 5 years. 

With an extensive background in Australian agriculture, and rural and regional development, Ms Simson is a strong advocate for the interests of farmers and rural communities. 

Elected in 2016 as the first female President of National Farmers’ Federation (NFF), Ms Simson led the farming industry through a period of great change and challenge. She was instrumental in the launch of the NFF’s first Diversity in Ag Leadership Programme in 2018 and spearheaded the NFF’s 2030 $100bn Vision before stepping down as President in October 2023. 

Ms Simson is leading new approaches to the stewardship of natural capital and biodiversity. In 2023, she was elected to the board of the World Farmers’ Organisation representing Australia and New Zealand. Amongst other roles, Ms Simson also Chairs the Future Food Systems CRC and sits on the Board of NRMA (NSW).

Ms Simson’s family have farmed on the Liverpool Plains since 1928. She holds a Bachelor of Arts from the University of Canberra and is passionate about the need to grow connections between farmers and urban consumers. 

Mr Richard Bolt - Member

Mr Bolt was appointed as a member of the Authority on 15 March 2024 for a term of 5 years. 

Mr Bolt joins the Authority having played lead roles in national climate and energy policy, including reform of the supervision of the national energy market and the design of programs to drive renewable energy, energy efficiency, smart metering and carbon reduction. He has also led reform, delivery and innovation in agriculture, earth resources, economic development, transport and education.

Mr Bolt is also Chairman of Hydro Tasmania, Independent Chair of a Japan-Victoria taskforce to commercialise clean hydrogen exports, and adviser to NSW on its renewable energy roadmap. 

Between 2006 and 2018, he was Secretary of the Victorian government’s Departments of Primary Industries; Education and Early Childhood Development; and Economic Development, Jobs, Transport and Resources.

Mr Bolt holds a Master of Public Policy Management from Monash University, a Bachelor of Engineering (electrical engineering) from the University of South Australia, and a Diploma of Company Directorship from the Australian Institute of Company Directors. 

Ms Patty Akopiantz - Member

Ms Akopiantz was appointed as a member of the Authority on 5 August 2024 for a term of 5 years. She has spent more than 35 years as a top ASX company director and senior manager within the energy, retail, health and financial services sectors. 

Ms Akopiantz is committed to the role that businesses can and must play in decarbonisation and passionate about the role of women in the net zero transition. 

She is the co-founder of Assembly Climate Capital, an impact firm that supports early-stage climate ventures. She is a non-executive director of Sea Forest, leading the commercialization of asparagopsis supplements to reduce methane emissions. 

Ms Akopiantz is also a non-executive director of KPMG and is Chair of Environmental Leadership Australia (ELA). ELA focusses on building bipartisan support for climate change. 

She is a member of Chief Executive Women and has an MBA from Harvard Business School.

Ms Gretta Theobald Stephens - Member

Ms Stephens was appointed as a member of the Authority on 9 April 2025 for a term of 5 years. Ms Stephens is a highly experienced executive in the heavy industry sector having worked for over 30 years in aluminum and steel in Australia and New Zealand. She has held senior executive roles in operations leadership, business transformation and technical development and brings experience in climate change and sustainability, the role of large industrial users in the energy system as well as corporate strategy and governance.

Ms Stephens has long had a passion for heavy industry and the strategic importance and value creation these bring to the community and nation. She has dedicated her time in recent roles to addressing the enablers required to maintain these industries through the transition to a low carbon economy. 

From 2021 to 2025 Ms Stephens was the first Chief Executive of Climate Change and Sustainability for BlueScope, the first role of its kind in a major industrial in Australia. 

In addition to her executive roles Ms Stephens has contributed to government, industry and community initiatives serving on the NZ Prime Ministers Business Advisory Council, NZ Business and Parliamentary trust board, Advisory committee to the Electricity Authority Board, Chamber of Commerce board, Regional Development Strategy governance board and has been a sought after public speaker on the topic of industrial decarbonisation.

Ms Stephens is an alumna of Monash University holding a B.Sc in Chemistry & Materials Science and a B.E in Materials Engineering (Hons). 

Mr Tim Reed - Member

Mr Reed was appointed to the Authority on 1 May 2025 for a term of 5 years. Mr Reed joins the Authority as a past President of the Business Council of Australia (BCA), Australia’s pre-eminent business organisation. During his tenure at the BCA, the Business Council was instrumental in helping achieve bi-partisan support for Australia’s Net-Zero 2050 goal, and for supporting a far more ambitious 2030 goal of 46% to 50% reduction over 2005 emissions.

Mr Reed currently holds the role of Co-Managing Director of Potentia Capital, an Australian private equity firm with over $1.5B billion funds under management, that invests in and grows local software businesses. Prior to Potentia, Mr Reed spent 12 years as CEO of MYOB - a leading provider of online accounting, payroll and tax solutions to SMEs and their advisers – which grew eightfold to over 800,000 subscribers and to an enterprise value of over $2.5 billion.  

Mr Reed is also a non-Executive Director of Transurban Ltd, a leading global infrastructure business specialising in road solutions; and of the Australian Climate and Biodiversity Foundation.

Mr Reed holds a Master of Business Administration from Harvard Business School where he graduated as a Baker Scholar and a Bachelor of Commerce from the University of Melbourne where he graduated with first class honours in economics.

Professor Tony Haymet - Chief Scientist - Ex-Officio Member

Professor Haymet was appointed as Australia’s Chief Scientist on 28 January 2025 for a 3-year term. 

Professor Haymet is an emeritus distinguished professor of oceanography. He has researched and taught for many years in Australia and in the United States, including as Established Chair of Theoretical Chemistry at the University of Sydney. He has worked in hydrophobicity, crystal-liquid interfaces, fish antifreeze proteins in Antarctica, and the spherical football molecule C60.

From 2002 to 2006, Professor Haymet was chief of CSIRO Marine Research, then CSIRO Marine and Atmospheric Research, based in Hobart, Tasmania, where he led 5 CSIRO laboratories around Australia, and managed 2 research vessels.

From 2006 to 2012, he was Vice-Chancellor, Director and Distinguished Professor of Oceanography, at the Scripps Institution of Oceanography at the University of California, San Diego. The Scripps Institution is one of the world’s foremost centres for global earth, ocean and atmosphere research. 

In 2010, Professor Haymet and a colleague at the Scripps Institution established MRV Systems LLC, a company that manufactures ocean robots. MRV’s fleet of underwater autonomous drones is equipped with a variety of sensors to take chemical and physical measurements across the world’s oceans, and data is shared through the Scripps Institution.

Professor Haymet joined the board of the Antarctic Science Foundation, based in Hobart, in 2020 and become its Chair in 2021. He was also on the board of Worldfish, based in Penang (2017-2020). He was also Chair of the Australian Academy of Technological Sciences and Engineering (ATSE) Climate Change Working Group,

He is a Fellow of the Australian Academy of Technological Sciences and Engineering (ATSE) and the Royal Australian Chemical Institute (RACI). 

Climate Change Authority Executive

Mr Brad Archer - Chief Executive Officer

Brad Archer has extensive experience working on climate change, renewable energy and energy market issues. He joined the Climate Change Authority in November 2018. Previously, he was head of the International Climate Change and Energy Innovation Division in the Australian Government Department of the Environment and Energy, where his responsibilities included advising on clean energy innovation, Australia’s greenhouse gas inventory, and international climate change policy. 

Mr Archer has been working on climate change policies for the Australian Government since early 2011. Prior to this he worked on a range of issues in the Treasury, which he joined in 1991. Mr Archer has qualifications in economics and information management.

Previous Authority Members