To Fly, or Not to Fly?

Every four years, thousands of coral reef scientists, conservationists, managers, students, communicators, and advocates converge from around the world for the International Coral Reef Symposium.

The irony is impossible to ignore.

We gather to discuss one of the clearest casualties of climate change while collectively boarding thousands of flights that contribute to the very emissions driving coral reef decline.

It’s an uncomfortable paradox. And one our community is increasingly willing to confront.

There are compelling arguments on both sides.

For some, the math is straightforward. Long-haul aviation carries a substantial carbon cost, and in an age of increasingly sophisticated virtual communication, asking thousands of people to fly across the globe seems increasingly difficult to justify. If we are asking the rest of society to reduce emissions, shouldn’t we lead by example?

Others argue that this framing risks oversimplifying both the problem and the solution.

As marine ecologist David Obura recently wrote in a discussion following this year’s symposium:

“A critical part of conferences is not just the networking, but the hive-mind of coming together.”

Over more than fifty years, the International Coral Reef Symposium has helped transform a collection of geographically isolated researchers into a global conservation community. Collaborations have begun over coffee. Students have found mentors. International initiatives have taken shape in hallway conversations that could never have been scheduled in a Zoom breakout room.

Obura also cautions against placing too much emphasis on individual carbon footprints while overlooking the systems that generate far greater emissions.

“Industry has been exceedingly effective at making the individual consumer take responsibility for the impacts of their value chains.”

That perspective resonates with many who worry that debates over individual travel can distract from the larger structural changes needed to rapidly decarbonize society.

Yet there is another issue that deserves far more attention. The cost.

Registration for a week-long international conference. Airfare. Hotels. Meals. Ground transportation. Time away from work or family.

For many scientists—particularly students, early-career researchers, colleagues from the Global South, practitioners working outside academia, or those in small nonprofits—the greatest barrier isn’t the carbon footprint.

It’s simply getting through the front door.

Ironically, the people whose voices are often most needed are frequently the least able to afford the journey. If we want our scientific community to become more representative, equitable, and globally connected, accessibility deserves to sit alongside sustainability in this conversation.

Perhaps the question isn’t whether conferences should exist. Perhaps it’s how they evolve.

Hybrid participation that is genuinely integrated rather than an afterthought. Regional satellite meetings connected to global events. Better travel support. Longer intervals between large international gatherings. Lower registration costs. New ways of fostering meaningful collaboration throughout the years between conferences.

There is no perfect solution.

Flying less matters. Building community matters. Climate leadership matters. So does ensuring that the next generation of coral reef conservationists—and colleagues without institutional resources—can actually participate.

Sometimes the hardest conservation questions aren’t ecological.

They’re about how we choose to work together.