From Conferences to Cascades: Turning Connection into Collective Action

The UN Adaptation Conference 2025 in Aotearoa New Zealand brought together 1,800 delegates from ninety countries. Millions of dollars flowed into the local economy. Dozens of sessions were held. Research was presented.

But what happens next? After the lights fade and the lanyards are handed in, what carries forward?

Will the perennial issues of siloes and disconnected activity have shifted enough to accelerate adaptation action—the stated purpose of this gathering? Will the networking have changed the network itself, reducing siloes and increasing connectivity?

Through a network lens, the purpose of such conferences is not only to share knowledge but to create conditions for a cascade—a self-reinforcing wave of adoption and action that continues long after the closing remarks.

Cascades don’t happen by chance. They depend on how the network is structured and how easily ideas move through it.

Every system contains patterns of connection that shape what spreads and what stalls. Too sparse, and ideas fall into the gaps. Too dense, and established routines hold fast. Effective networks balance strong local clusters that provide mutual reinforcement with longer ties that bridge boundaries. This combination allows ideas to stabilize locally and then travel.

Complex change depends on this balance. Ideas must be both broadcast widely and reinforced through multiple exposures in different settings. People rarely adopt new practices after a single encounter. They need to see and hear them from several directions—colleagues, peers, credible sources—before confidence builds, risk feels manageable, and action becomes possible.

The goal is to make that movement easier: connect what’s fragmented, reduce friction between groups, and let ideas circulate until they reach points where action can occur. When networks are shaped this way, the conditions for a cascade—and therefore accelerated action—begin to form.

This shaping doesn’t happen by accident. It takes deliberate design.

Rather than leaving connection to random mingling, it’s about creating moments that forge new relationships, build alignment, and allow early signals of change to reinforce each other. The aim is intentional dialogical exchange that includes diverse perspectives and experiences, creating new pathways for ideas to move through.

That means curating encounters between disciplines, sectors, and jurisdictions—between those who make decisions and those who live with their effects. It means making overlaps visible so people see themselves as part of something larger. And it means establishing simple structures—before, during, and after a gathering—that help new connections take hold and persist.

It also means asking who isn’t in the conversation. Networks grow stronger through cognitive and experiential diversity. When everyone shares the same assumptions, we build coherence but lose variety. Inviting different and even dissenting perspectives can feel uncomfortable, yet it’s essential for learning, adaptation, and expanding the range of what’s possible.

Accelerating action isn’t about adding urgency. It’s about creating conditions so action happens sooner and in greater quantity across a network. It’s about harnessing the cumulative effect of the system’s capacity.

Each node—each person, community, organization, or agency—holds part of the capacity needed, often untapped. The trick is to lower the thresholds: reduce the cost of connection, make actions visible, open up knowledge and resource sharing, and generate multiple reinforcing signals of what’s possible.

When that happens, energy flows through the system more freely and action accelerates. What looks like sudden momentum is usually the visible phase of a process that has been quietly compounding beneath the surface.

Left unattended, siloes interrupt this flow. They trap energy inside familiar loops and slow the spread of ideas, willingness, and activity.

Shaping network patterns requires looking beyond conventional structures and deliberately designing conditions that promote interaction, experimentation, and exposure to exemplars. It takes scaffolded collaboration that builds connection and alignment around shared intent—such as the ambition to accelerate adaptation action.

This takes numerous small acts that rarely make headlines but quietly alter trajectories. None of us needs to conquer the entire ambition alone—that’s what the network helps with. You simply need to play your part.

Each of us can contribute to changing the trajectories of things that matter.

• We have power within us to choose our mindsets and attitudes, how we show up and what we stand for.

• We have power over our decisions, actions, and responses.

• We have power with others. When we come together, there is very little we can’t do.

When we direct those forms of power toward shared purpose, set egos and self-interest aside, and focus on what we can do collectively, the possibilities expand and accelerated action takes hold. Siloes no longer slow us down. Cascades take hold.

What looks like momentum is really connection finding its form—the moment when siloes give way and the system starts to act as one, one small step at a time.