21/02/2025
In October of 2024, I was invited to take part in an incredible citizen science initiative to survey the Great Barrier Reef. To say I was excited, is an understatement.
The Great Barrier Reef is arguably Australia’s most famous natural wonder. This Unesco World Heritage listed ecosystem spans 2,300 kilometers of the northeastern coast of Australia and is the largest coral reef system in the world!! Home to over 1,600 species of fish, 6 of the 7 species of marine turtles, 450 variety of hard corals, 1,000 species of soft corals, 30 species of whales and dolphins, a thriving population of dugongs, and 133 species of sharks and rays, it is one of the most biodiverse and complex ecosystems in the world.
Drawing approximately 2.9 million tourists every year this ecological jewel is also a significant source of income for Australia’s tourism industry.
I had briefly visited the Great Barrier Reef many years before but this was to be a full immersion in the life and landscape on the reef along with a crew of marine biologists and on a trip that aimed to help the reef, so I was truly thrilled.
The itinerary would take us to the most southern edges of the reef, The Capricorn Bunker Group, where we would survey North, East, South and West of as many reefs as possible, collecting reconnaissance images to then submit to a census survey where our images would be analysed for bleaching, cyclone impacts, and crown of thorn starfish.
We were the first crew to do a major survey of this portion of the reef since the last large bleaching event had been announced on the Great Barrier Reef in March of 2024, so none of us knew in what state we would find the reef. (continued in comments)
The waters were spectacular, the most vivid turquoise you can imagine. And we were visited by dolphins, manta rays, turtles, and even a few cheeky sharks.
However, life under the seas surface revealed a truth none of us could deny. Survey site after survey site revealed that the Capricorn Bunker Group had, on the whole, not been able to recover since the bleaching event. During our expedition we witnessed ongoing bleaching even though it was winter (when waters should have been much cooler) and a mass mortality of its coral reefs. The trip was a shocker and I spent more occasions than I can count, crying into my snorkel and mask.
This famous natural wonder. This UNESCO heritage area. This irreplaceable habitat for thousands of plants and animals. And this place that Australia advertises and markets to the rest of the world. How could it be? It was hard to make sense of.
It’s taken me months to get this video finished and it’s far from perfect but this story feels deeply important to me. Our most precious ecosystems are on the chopping blocks of climate change.
I spoke to a survey group who had surveyed reefs farther north in Queensland and was heartened to hear that they had documented a myriad of healthy and thriving reefs, including a number of mother reefs – which can help reseed other damaged reefs.
It’s possible that because these southern reefs that we visited were often sheltered from the impacts of bleaching, that they were less resilient in the face of this recent event, and as such, couldn’t survive.
It is possible that in time the Capricorn Bunker Group could recover but given the state we saw it in, it would take many, many years. And its recovery would depend on water temperatures stabilising.
During my research on the reef I learned that over 90% of the excess heat caused by climate change in Australia is absorbed by the ocean, with sea surface temperatures around the continent warming by approximately 1 degree Celsius since 1910. And the most significant warming occurring in recent decades. The science has shown us that this warming is directly linked to increased greenhouse gas emissions.
It’s so tricky sharing this kind of news because I know it is heartbreaking and as someone that personally struggles with eco-anxiety I know viscerally just how overwhelming and paralyzing this kind of news can be. But at the same, I do believe the truth can be a catalyst for action and restoration. And without truth we are really in trouble.
All is not lost for the reef but we MUST reduce our emissions and work towards limiting global heating events, as well as do absolutely everything we can to conserve and protect this ecosystem. As I mention in my video, there are numerous stellar organisations working to help our reefs and they can always use more volunteers, donations, and outspoken advocates for their work. Secondly, this federal election is going to be a big one in Australia and places like the Reef really hang in the balance. If you love the Great Barrier Reef, please remember this underwater world when you vote this year. Action truly is the best antidote to despair and I deeply believe that people power can change the planet. I’ll be publishing an article on this shortly on the Heart Atlas site but wanted to get this video up in the meantime. This is highly imperfect as I am currently teaching myself how to shoot video and edit but it's got heart and at the end of the day perhaps that's I think what matters most. Thanks for checking it out
In October of 2024, I was invited to take part in an incredible citizen science initiative to survey the Great Barrier Reef. To say I was excited, is an und...