UNiting Business LIVE Australia 2026 brought senior business leaders, sustainability practitioners and global experts together in Sydney on 13-14 May to focus on one question: what does practical sustainability leadership look like in a more volatile world?

The event, convened by the UN Global Compact Network Australia (UNGCNA), was framed by Australia’s upcoming role in the negotiations for COP31 and a strong emphasis on translating ambition into action across climate, nature, human rights and governance. Drawing on the event’s main themes and some of the speaker reflections, here are ten key messages that stood out for me:

1. Sustainability has moved from the margins to the centre of strategy.

A recurring theme throughout both days was that sustainability is no longer a parallel workstream; it is increasingly inseparable from corporate strategy, risk management and long-term competitiveness. That framing was reinforced by the event narrative, resources and speakers emphasising climate, nature, governance and human rights as intersecting business issues rather than siloed concerns.

2. Climate risk is now being treated as a financial and operational reality.

Speakers and participants repeatedly pointed to the shift from abstract concern to material risk. The tone of the conference suggested that boards and executives are under growing pressure to understand and act on physical climate impacts, transition risk, supply chain disruption and energy shocks as core commercial issues. This was not framed as a reputational exercise, but as a resilience imperative.

3. Nature is emerging as the next major ‘frontier’ for business action.

Climate may have been the starting point, but nature is now becoming one of the main drivers for business action. The UNGCNA made sure that the event’s design explicitly linked climate with biodiversity, natural systems and resource competition, reflecting a growing recognition that businesses cannot manage climate exposure without also understanding their dependence on ecosystems, water, land and community resilience.

4. The strongest organisations are integrating accountability at the top.

One of the most practical ideas to emerge was the need to embed sustainability into executive and board accountability rather than treating it as a specialist approval process. The perspectives shared by Mirja Viinanen, CEO and Chief Sustainability Officer of IKEA Australia, reflected the growing support for business models where commercial and sustainability outcomes are governed together, not traded off against each other.

5. A Just Transition is essential, not optional.

The conference gave strong weight to the social dimensions of Australia’s energy transition, particularly the need to put workers, communities and First Nations voices at the centre of decision-making. Sharan Burrow, a global advocate for human rights, climate action and Just Transition and the former General Secretary of the International Trade Union Confederation, alongside many other speakers, provided a sharp reminder that climate action without fairness, dialogue and social legitimacy will struggle to gain the trust required for delivery at any meaningful scale.

6. Adaptation deserves equal attention alongside mitigation.

The event made clear that even if emissions fall, many communities and industries are already living with locked-in climate impacts. That means adaptation can no longer sit in the background. Businesses need to think more seriously about how investment, planning and partnerships can support resilience in places already exposed to heat, flood, fire, infrastructure stress and social vulnerability.

7. Disclosure should communicate value creation, not just compliance.

Another message running through both days of sessions and discussions was that reporting is maturing. Disclosure may still be about meeting regulatory expectations, but it is also becoming a way for organisations to explain how they create and protect long-term value. In that sense, transparency is most useful when it helps stakeholders to understand strategy, trade-offs and execution rather than simply producing more data.

8. Australia’s COP31 role creates a rare window for business leadership.

Because Australia is set to play a central role in COP31 negotiations, the conference positioned Australian businesses as more than observers. Speaker after speaker stressed that the private sector has an opportunity to shape priorities, send credible signals to government and help translate global commitments into practical implementation – and that elevated the urgency of the conversations in the room.

9. Collective action matters where individual advocacy might stall.

Several sessions pointed to the limits of isolated corporate action, especially in policy environments where businesses may hesitate to speak alone. The event’s participant-led format and cross-sector focus underscored the value of shared business signals, collaboration across functions, and practical alliances that can move markets and policy settings faster than any one organisation can on its own.

10. The mood has shifted from measurement to execution.

Perhaps the clearest takeaway was that many leaders feel the data and the diagnosis is already well understood. The hard part now is delivery: making decisions, assigning accountability, investing in capability and following through. UNiting Business LIVE Australia 2026 was notable not because it repeated familiar sustainability rhetoric, but because it reflected a stronger appetite for operational change. If that mood holds, the event will be remembered as part of a broader shift from ‘sustainability as narrative’ to ‘sustainability as implementation’.

By Robin Mellon, CEO, Better Sydney