We are the only culture that looks for dark spots in the Milky Way
For tens of thousands of years, the night sky above Australia has served as both compass and calendar — a living archive of ecological knowledge written in starlight and shadow. Today, artificial light is steadily erasing that archive, severing Indigenous communities from ancestral astronomy while quietly destabilising the ecosystems that have long depended on darkness. As scientists document a 16 percent global rise in light pollution since 2014, Australia finds itself in a paradox: vast dark landscapes coexisting with some of the world's highest per-capita contributions to the problem. The question now is whether a nation that inherited one of Earth's oldest knowledge systems will choose to protect the sky those systems were written upon.
- A Yorta Yorta and Barapa Barapa man in Geelong can barely see stars from his window — a sky that once taught his people when to gather eggs and when to leave them now glows with the ambient wash of electric light.
- Light pollution has surged 16 percent globally in under a decade, and Australia's per-capita contribution ranks among the worst in the G20, driven by LED billboards, solar-powered lights left running all night, and urban glow bleeding into regional areas.
- The harm is not only cultural — seabirds fly 15 kilometres off course, kelp forests weaken, and entire aquatic food chains are disrupted as species without eyes respond to light cycles that have been fundamentally altered.
- A 12,000-signature petition calling for national legislation reached Parliament, but the Environment Minister acknowledged the problem without committing to law — while Germany, France, and Croatia have already acted.
- Advocates are building momentum through dark sky reserves, school workshops, and international comparisons, holding open the possibility that enforceable protections could still arrive before the last dark skies disappear.
Kai Lane grew up in regional Victoria beneath a sky so dense with stars it functioned as a classroom. His people, the Yorta Yorta and Barapa Barapa, had spent millennia encoding ecological knowledge into the night — including the Emu in the Sky, a constellation traced through the dark patches of the Milky Way rather than its bright points. The emu's posture signals when to collect eggs and when to leave them alone: an astronomical calendar refined across thousands of years. Now, lying in bed in Geelong, Lane can see only a handful of stars. The classroom is going dark.
The scale of the loss is measurable. A NASA-funded study found artificial light at night increased 16 percent globally between 2014 and 2022. Australia holds a troubling paradox — the lowest proportion of light-polluted land among G20 nations, yet one of the highest per-capita contributions to the problem. LED billboards, continuously running solar lights, and urban glow spreading into rural areas are the primary drivers. As Marnie Ogg of the Australasian Dark Sky Alliance notes, for 3.8 billion years Earth moved through reliable cycles of day and night. That rhythm broke roughly 150 years ago.
The consequences reach well beyond the human. Marine ecologist Mariana Mayer Pinto has documented seabirds flying 15 kilometres off course, kelp forests suffering altered growth and increased mortality, and disrupted food chains affecting species that have never seen a single photon of artificial light. Meanwhile, on Queensland's Sunshine Coast — now home to Australia's first DarkSky International reserve — a winter observer can count 3,000 stars. In central Brisbane or Sydney that same night, they would see nine.
Australia has guidelines on light pollution for wildlife, but no enforceable law. A petition of more than 12,000 signatures was presented to Parliament; the Environment Minister acknowledged the harm but made no commitment to legislation. France acted in 2013. Germany and Croatia have since followed. For Lane, the stakes are intimate — his totems, the long-necked turtle and the microbat, are both harmed by artificial light, and protecting them is not sentiment but obligation. He runs school workshops where students draw constellations, then covers their work with a white sheet to show what light pollution does. His hope is to one day sit on a city porch and see enough stars to know the fight was worth it.
Kai Lane lies in bed at night in Geelong, Victoria, and looks up through his window at a sky that has grown dim. On a clear night, he might see a handful of stars. It wasn't always this way. Growing up in Kerang, in the state's north-central region, Lane watched a night sky so thick with stars that it became a classroom—one where his people, the Yorta Yorta and Barapa Barapa, had encoded thousands of years of knowledge into the darkness itself.
Among the constellations Lane learned was Emu in the Sky, traced not by connecting bright points but by reading the dark patches of the Milky Way. This is a practice unique to Indigenous Australian cultures. The emu's position in the sky tells a story with practical weight: when it sits, the season is right to collect eggs; when it stands, breeding has begun and the eggs must be left alone. These are not mere myths. They are ecological calendars, written in light and shadow, refined across millennia. But as artificial light spreads across Australian towns and cities, that sky is vanishing. The stars are being erased, and with them, a way of knowing the world that has guided Lane's people through seasons and survival.
The problem is global and accelerating. A NASA-funded study published in Nature in April examined more than 1.1 million satellite images and found that artificial light at night increased by roughly 16 percent worldwide between 2014 and 2022. Australia presents a paradox: while it has the lowest proportion of light-polluted land among G20 nations, on a per-capita basis Australians are among the world's heaviest contributors to the problem. The culprits are familiar—LED billboards that burn through the night, solar-powered lights that run continuously because the energy costs nothing, the ambient glow that spreads from cities into regional and rural areas alike. Marnie Ogg, founder of the Australasian Dark Sky Alliance, frames the scale of the shift starkly: for 3.8 billion years, Earth cycled through predictable day and night. Then, roughly 150 years ago, the electric light arrived and changed everything.
The consequences extend far beyond aesthetics. Dr. Ken Wishaw, a former anaesthesiologist and Australia's first full-time helicopter doctor, had his own reckoning with this loss during a 2016 rafting trip to the Grand Canyon. When he offered to guide his group through the constellations, one woman began to cry. She was 42 years old and had seen a starry night sky only twice in her life—once during Florida's 2008 power grid collapse, when darkness briefly returned to the state. Wishaw has since become a driving force behind the Sunshine Coast International Dark Sky Reserve, Queensland's first official designation by DarkSky International, spanning more than 870 square kilometers of protected hinterland. On a clear winter night there, observers can see 3,000 stars. In central Brisbane, Sydney, or Melbourne on the same night, they would see nine.
But the damage reaches deeper than human wonder. Mariana Mayer Pinto, a marine ecologist at the University of New South Wales, studies how artificial light disrupts ecosystems. Seabirds become disoriented and fly up to 15 kilometers in the wrong direction. Kelp, one of the most important habitat formers in the Great Southern Reef, experiences altered growth and increased mortality when exposed to artificial light combined with warming waters. Even species without eyes are affected—the light changes aquatic food chains, disrupts circadian rhythms across the animal kingdom, and creates ecological imbalances that ripple through entire systems. While some species may temporarily benefit by attracting prey, the overall effect is destabilization.
Australia has National Light Pollution Guidelines for Wildlife, but they are not legally enforceable. A petition signed by more than 12,000 people was submitted to the House of Representatives in September, calling for national legislation. In December, Environment Minister Murray Watt acknowledged the problem—excessive lighting affects human health, disrupts ecosystems, and wastes energy—but stopped short of committing to new laws. Countries including Germany and Croatia have already passed light pollution legislation; France issued a decree in 2013. Ogg describes the Australian response as a missed opportunity, a simple win that keeps slipping away.
For Lane, the stakes are personal and cultural. His totems are the long-necked turtle and the microbat. Having a totem is an obligation to protect it. Both of his are being harmed by light pollution. He runs cultural heritage workshops at schools, where he asks students to draw constellations, then places a white sheet over their work to simulate how artificial light obscures the sky. Many leave pledging to ask their parents to switch to warmer LED lights or turn off unnecessary outdoor lighting. Lane's hope is simple but profound: that one day, as an Elder, he can sit on his back porch in Melbourne or another major city and see the stars clearly enough to smile at what he fought for. That future remains uncertain, but the fight to preserve it is underway.
Citas Notables
We've had 3.8 billion years of natural day, night cycles that were predictable and then around 150 years ago we introduced the electric light, and that's completely changed the nighttime environment.— Marnie Ogg, founder of the Australasian Dark Sky Alliance
When you get a totem, it's an obligation to look after it. When I'm hearing that both my totems are getting destroyed, it does break your heart.— Kai Lane, Yorta Yorta and Barapa Barapa man and trainee ecologist
La Conversación del Hearth Otra perspectiva de la historia
When you say the emu is traced through dark patches rather than stars, what does that actually mean when you're looking up?
You're looking at the Milky Way, and instead of connecting bright points like most cultures do, you're reading the silhouettes—the dust clouds that block the light. The emu's body, its neck, its legs all emerge from that darkness. It's the inverse of what most people are taught to see.
And that knowledge about when to collect eggs—how precise is that? Is it metaphorical or literal?
It's literal. The emu's position in the sky marks actual ecological events. When breeding happens, the timing matters for survival. This isn't poetry layered over practical knowledge; it's practical knowledge encoded as poetry.
Why does artificial light erase this specifically? Why not just make the stars harder to see?
Because you need darkness to read darkness. The dark patches disappear when the sky itself glows. The constellation doesn't just become faint—it becomes invisible. The knowledge system collapses.
The woman who cried at the Grand Canyon—what was she grieving?
She was 42 and had only seen a real night sky twice. She was grieving something she never knew she was missing. That's the insidious part. Most people don't know what they've lost because they've never had it.
If Australia has the least polluted land among G20 nations, why is it the worst per capita?
Population density in cities. We've concentrated ourselves in a few massive urban centers, and we've lit them intensely. We're efficient at pollution—we do more with less space.
What happens if nothing changes?
The knowledge systems disappear. The species that depend on darkness disappear or adapt in ways that destabilize ecosystems. And a generation grows up thinking the night sky is supposed to be empty.