About IX Summit Sydney
The pace at which we’re tackling climate change is far too slow, and the urgency is undeniable. Record-breaking heatwaves across the world and extreme weather events are giving us a preview of the challenges we face in a world warming beyond 1.5°C. To make real progress, we need a profound shift in both our mindset and strategies. We need to aim far beyond net zero emissions and dramatically accelerate action towards reversing the impacts of climate change.
The 4th annual Impact X Summit Sydney will address the possibilities, and barriers, for achieving a climate positive future. A flagship event of Climate Action Week Sydney at the iconic Sydney Town Hall, IX Summit Sydney 2025 will bring together some of the greatest climate visionaries and leaders from across Australia and the world.
There will be debate, discussion and lots of big ideas to deliver an even greater acceleration of investment and collaboration across sectors, borders and all levels of society. A shift in how businesses, organisations and individuals work to together, to restore our planet for generations to come.
Speakers will share innovations to remove more greenhouse gases from the atmosphere than those emitted, and present pathways to ensure the rapid restoration and regeneration of ecosystems.
Impact X 2025 will be held in anticipation of a COP 31 that delivers the long-lasting benefits that Australia, the Pacific and the world all need. Join us and share your big ideas for a climate positive future.
Australia’s annual Summit for a net zero, nature positive future.
2025 Speakers
Susan Moylan-Coombs
Founding Director
Gaimaragal Group
Jeremy Liddle
Managing Director
Third Hemisphere
Matt Kean
Chair
Climate Change Authority
Kat Bruce
Founder Director
NatureMetrics
Keith Tuffley
Expedition Leader
Ocean Science Expedition
Johan Rockstrom
Director
Potsdam Institute for Climate Impact Research
Cliff Cobbo
First Nations Principal Advisor
WWF Australia
Alopi Latukefu
Director
Edmund Rice Centre for Justice & Community Education
Kate Dundas
Executive Director
UN Global Compact
Dermot O’Gorman
Chief Executive Officer
WWF Australia
Martijn Wilder
Chair
National Reconstruction Fund
Khory Hancock
Chief Growth Officer
RegenCo
Katerina Kimmorley
Commissioner
NSW Net Zero Commission
Tim Ferraro
Director
Asia Pacific, Land Life
Paul Dettman
Founder & Director
Cassinia Environmental
Clover Moore
Lord Mayor of Sydney
Michael Battaglia
Mission Lead, Towards Net Zero
CSIRO
Katie Kiss
Aboriginal & Torres Strait Islander Social Justice Commissioner
Lachlan Feggans
Senior Director, Sustainability, ESG & Regeneration
Brambles
Heidi Lee
Chief Executive Officer
Beyond Zero Emissions
Aidan Mullan
Sustainability Manager, Australia & New Zealand
Interface
Neil Logan
Co-Chief Executive Officer
BVN
Tony Chappel
Chief Executive Officer
NSW Environmental Protection Agency
Sohan Domingo
Vice President of Sales, Technology & Operations
Dryad Networks
Guy Dickinson
Executive Director - Environmental Markets
Clima
Andrea Spencer-Cooke
Chief Executive Officer & Principal Advisor
One Stone Advisors
Andrew Warrender
Chief Executive Officer
Newcastle Airport
Anne Poelina
Chair, Indigenous Knowledges and Senior Research Fellow
Nulingu Research Institute
Ben Newell
Director
UNSW Institute for Climate Risk & Response
Cameron Kerr
Chief Executive Officer
Taronga Conservation Society
Cathryn O’Sullivan
Agricultural Scientist
CSIRO
Connor McCauley
Head of Sustainability, Australia & New Zealand
JLL
Dhruv Vishrani
General Manager, Strategy
Australian Renewable Energy Agency
Jacqueline Peel
Director, Melbourne Climate Futures
University of Melbourne
Justin Merrell
Group Sustainability Director
Lion
Mara Bun
Board Director, Council on Australia Latin America Relations
DFAT
Megan Fisher
Chief Executive Officer
EnergyLab
Persephone Fraser
Ethical Research & Climate Policy Lead
Australian Ethical
Phil Ireland
Chief Executive Officer
Carbon Neutral
Ricardo Pereira
Chief Financial Officer
IKEA Australia
Tui Shortland
Advisor
Climate Change Commission, New Zealand
Who attends?
A multi-stakeholder summit where leaders from government, business, science, and technology will come together to drive unprecedented collaboration in climate action.
Government & Policy Makers
Local councils, city, state and federal government agencies shaping bold climate policies and tougher regulations we need.
Finance & investment leaders
Banks, pension funds, investment firms, venture capital and private equity firms, asset owners, public and development finance institutions.
Business decision makers
Across key sectors from startups to the largest corporations, working together to decarbonise industry and deliver climate and nature goals.
Acknowledgement of Country
We respect and acknowledge the Traditional Custodians of Country, the Aboriginal and Torres Strait Islander Elders past, present and emerging. We recognise their rich cultures and connections to land, sea and community. Together, we commit to building a sustainable future together.
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Main stage
Insights from international keynote speakers, led by highly respected climate leaders along with senior business and Government stakeholders from the Pacific Islands and Australia, and across the globe.
Network & Meet
Connect with industry leaders, gain actionable insights, and explore cutting-edge solutions at Impact X, Australia’s premier climate and nature event driving sustainability, innovation, and collaborative impact.
Future focused discussions
Explore big ideas for a climate-positive future at Impact X, where visionary leaders and innovative solutions drive progress and empower action for lasting impact.
Climate solutions showcase
Innovators representing climate tech startups and scale-ups along with established brands will showcase their climate and nature solutions.