Scientists Record Borneo's Rainforest Before City Arrives

Deep in the heart of Borneo, scientists and indigenous farmers are capturing something precious: the sound of a rainforest before it changes forever.

Indonesia is building Nusantara, a new capital city, to replace Jakarta, which is sinking so fast that experts estimate one third could be underwater by 2050. The new city will rise in the middle of Borneo, one of the world's most biodiverse rainforests, projected for completion by 2045.

Researcher Wendy Erb knew immediately what was at stake. After working in the region for ten years, she understood that building a capital city there would transform the landscape and the wildlife that calls it home.

Her team's solution? Create an audio time capsule. They placed sound recorders across 20 different sites, from mountaintops to mangrove areas to caves, documenting 18 months of forest sounds as construction began.

But this isn't just about preserving nature. It's about preserving generations of human knowledge too.

Abidin, who has lived his entire life in the village of Pemaluan, remembers when gibbon calls at dawn meant a normal day, but calls at 9 or 10 in the morning signaled someone in the village would pass away. He recalls the distinctive cry of the great argus bird, a favorite of the Balik people. Now, he says, the loudest sound is often a chainsaw.

His biggest fear isn't losing the forest itself. It's that his children won't know what a great argus sounds like or understand the traditions their ancestors passed down.

The Ripple Effect

The project flips traditional research on its head. Local people aren't just helping collect data. They're defining the research problems, identifying the sites that matter most, and sharing the deep knowledge of relationships between people and place that only comes from living there for generations.

The recordings serve multiple purposes. Scientists can track where wildlife moves as construction progresses, identifying areas that need conservation investment. Communities preserve their ancestral knowledge in a format their children and grandchildren can access. The forest's voice gets saved for future generations.

Abidin shared another insight during the research: his ancestors had a prophecy that those who were once behind would one day be ahead. As he works alongside scientists to document his homeland, that prediction feels especially meaningful.

The team is proving that the best science happens when local communities don't just participate but lead. Their recordings capture more than bird calls and monkey chatter. They capture hope that knowledge, both scientific and ancestral, can help shape a future where progress and preservation work together.

Sometimes preservation starts by simply listening.