Editor’s note: “Our heating of the Earth through carbon dioxide and other greenhouse gas pollution, is closely connected to our excessive energy consumption. And with many of the ways we use that energy, we’re also producing another less widely discussed pollutant: industrial noise. Like greenhouse-gas pollution, noise pollution is degrading our world—and it’s not just affecting our bodily and mental health but also the health of ecosystems on which we depend utterly.”

“Our study presents a strong, albeit selfish, argument for protecting natural soundscapes.”

Wind turbines in coastal waters, along with the noise from construction and surveys, have led to concerns about their impact on marine life. “In particular, cetaceans such as whales and dolphins are likely to be sensitive to the noises and increased marine traffic brought by these turbines.” These marine mammals’ survival depends on the technology of bounce to hear noise thousands of miles away through echolocation.

There are growing concerns regarding artificial sounds produced in waters that could impact marine life negatively. The effects of ocean noise produced by sonar, oil and gas exploration, offshore wind, and ship traffic could alter the behavior of mammals and cause hearing loss or potentially even death. “The latest discovery in this field could provide substantial ground for alterations in the Marine Mammal Protection Act that dictated the kind of noise-inducing activities that can be carried out in the waters. This new conclusion could hinder the scale of the activities or even get certain types of equipment banned from use at sites.”

‘It’s nonstop’: how noise pollution threatens the return of Norway’s whales.

By Abhishyant Kidangoor / Mongabay

It started as a simple spreadsheet that documented locations where researchers were recording sound to monitor biodiversity. Three years on, the Worldwide Soundscapes project is a global database on when, how and where passive acoustic monitoring is being deployed around the world to study terrestrial as well as aquatic ecosystems.

“This is a project that is now becoming too big to be handled by only one person,” Kevin Darras, currently senior researcher at France’s National Research Institute for Agriculture, Food and Environment (INRAE), who conceived the project, told Mongabay in a video interview.

Darras started the project when he was a postdoctoral researcher at Westlake University in China. The idea struck when he was waiting for updates on another project he was working on at the time. With the project, Darras said he was attempting to fill a void that often led to duplication of efforts in the research community that uses passive acoustic monitoring — audio recorders left out in the wild — to study biodiversity around the world. “There was a scientific gap in the sense that we didn’t know where and when we were sampling sound for monitoring biodiversity,” he said.

Passive acoustic monitoring has long been used to listen in on insects, birds and other animals in ecosystems around the world. It’s aided scientists to detect elusive species in a noninvasive manner. For example, a team in Australia used acoustic recorders and artificial intelligence to track down the breeding hollows of pink cockatoos (Lophochroa leadbeateri leadbeateri) in a remote region. The method has also helped researchers get insights into the behavioral and communications patterns of animals.

Despite advances in recent years with more sophisticated recorders and automated data analysis, Darras said researchers still haven’t “achieved standardization in terms of deployment or analysis.” Darras said he hoped to use the Worldwide Soundscapes project to help build a supportive network that could potentially work toward harmonizing approaches to passive acoustic monitoring.

“We hope people will look at the data and see what is already done to avoid duplication,” he said. “They might also probably find a colleague’s work and wonder, ‘Oh, why is this gap not filled? Maybe I can do something there.’”

Kevin Darras spoke with Mongabay’s Abhishyant Kidangoor on why he started the Worldwide Soundscapes project, how he envisions it growing into a global network, and the potential of ecoacoustics in biodiversity monitoring. The following interview has been lightly edited for length and clarity.

Mongabay: To start with, how would you describe the Worldwide Soundscapes project to someone who knows nothing about it?

Kevin Darras: In a fairly simple way, I would describe it as a simple inventory of what has been done globally, whether it’s aquatic or terrestrial, in terms of acoustic recording for monitoring biodiversity. Our first goal was to compile something like a phonebook for connecting people who are usually separated by the realms that we study. What I mean by that is we don’t communicate as much among ourselves. For example, marine scientists usually don’t talk much with terrestrial scientists. We have now succeeded in connecting and bringing people together. However, very early on, we realized that we could do more than that, and that we could put our metadata together to get a comprehensive picture of what is going on worldwide in terms of acoustic sampling.

Mongabay: What gaps were you trying to fill with this project?

Kevin Darras: There was a scientific gap in the sense that we didn’t know where and when we were sampling sound for monitoring biodiversity. There was also this gap in the community that made us not so well aware of the developments in other fields. There have been a lot of parallel efforts in different realms when, in reality, the same solutions might already exist in other communities. Our aim is to first make everyone aware of what is out there and ideally, one day, to harmonize our approaches and to benefit from each other’s experience.

Mongabay: Could you give me an example of how acoustic research efforts were duplicated in the past?

Kevin Darras: There are lots of examples when it comes to sound recording, calibration and the deployment of equipment. Because deployment in the deep sea is very much more troublesome and costly, our marine scientists go to great lengths to calibrate their equipment to make every deployment really worth it and to get data that are standardized. As a result, they are able to usually measure noise levels, for instance. Whereas those of us in the terrestrial realm have access to such cheap recorders that setting them up is almost too easy. The consequence is that, generally, we have very large study designs where we deploy hundreds of sensors and recorders and end up with a massive data set that, unfortunately, isn’t very well calibrated. We would only have relative sound levels and won’t be able to really measure noise levels.

On the other hand, I think the community that does terrestrial monitoring has made some great strides with respect to the use of artificial intelligence for identifying sound. By now, we have achieved a pretty consistent approach to bird identification with AI. This is something that could benefit people working in the aquatic realm who often have custom-made analysis procedures.

Mongabay: What was the spark to get started with this?

Kevin Darras: It started three years ago. I was actually busy with another project where I was working on an embedded vision camera. Between the development rounds, we had some time where we were waiting for the next prototype. Rather than just sit and wait, I told my supervisor that I wanted to start another project while waiting for updates. This is when I started contacting people from my close network to find out where they’ve been recording. It started with filling an online spreadsheet, which has grown since then. By now, I believe, a good portion of the community that uses passive acoustic monitoring knows about the project.

Mongabay: Could you tell me how it works currently?

Kevin Darras: The way it currently works is that people find out from their colleagues. Or we actively search for them. Then we send them all the basic information about the project. We ask them to fill in the data in a Google spreadsheet, but we are slowly transitioning to enter everything directly on a website. In the very beginning of the project, we didn’t have the capability, and we needed a really easy and effective way of adding people’s data. A Google spreadsheet was a fairly good idea then. Then we validate the data to see if things make sense. We cross-validate them with our collaborators after showing them the timelines and the maps that represent when and where their recordings have been made. In the end, there is a map which shows where all sounds have been recorded. For each collection, you can also view when exactly the recordings have been made.

Mongabay: Could you give me a sense of the kind of data in the database?

Kevin Darras: If you were a potential contributor, you would have to first provide some general information. Who are the people involved? Are the data externally stored recordings or links? Then we would get to the level of the sampling sites. We require everyone to provide coordinates and also to specify what were the exact ecosystems they were sampling sounds in. That’s the spatial information.

For the temporal information, we ask people to specify when their deployments started and when it stopped, with details on date and time. We also ask for whether they are scheduled recordings with predefined temporal intervals, like daily or weekly, or duty-cycled recordings, meaning one minute or every five minutes, or if they are continuous recordings.

We also request audio parameters like the sampling frequency, high-pass filters, number of channels, the recorders and microphones that they used. Lastly, we ask them to specify whether their deployments were targeting particular [wildlife], which is not always the case. Sometimes people just record soundscapes with a very holistic view.

Mongabay: How do you hope this database will help the community that uses passive acoustic monitoring?

Kevin Darras: We hope people will look at the data and see what is already done to avoid duplication. They might also probably find a colleague’s work and wonder, “Oh, why is this gap not filled? Maybe I can do something there.”

Mongabay: What surprised you the most?

Kevin Darras: It’s probably how big some of these studies were. I was amazed by the sampling effort that, for instance, some Canadian groups did over hundreds of sites over many years.

Also surprising for me was that there were some really gaping holes in our coverage in countries where I would have thought that the means existed for conducting eco-acoustic studies. Many North African countries don’t seem to be doing passive acoustic monitoring. We’ve just had our first collaborator from Turkey. Central Asia is poorly covered. This is for terrestrial monitoring.

For marine monitoring, I was actually surprised to see that the coverage was rather homogeneous. It’s sparse because it’s more difficult to deploy things underwater, but it was globally well distributed. I was surprised to see how many polar deployments there were, for instance, under very challenging conditions. Those are very expensive missions.

Mongabay: What was the biggest challenge in doing this?

Kevin Darras: It’s making everyone happy [laughs].

We had to be fairly flexible with what we expected from people and our criteria. Basically, we decided to trust our collaborators and it worked pretty well. Some people would struggle to provide basic metadata and would have to organize themselves and their data before being able to provide it. Others would be like, “Sure, I can send this to you in five minutes,” and then you get a huge data sheet.

Mongabay: Now that you have a fair idea of how acoustic monitoring is being used around the world, how do you think it is faring when it comes to biodiversity monitoring?

Kevin Darras: I think that the point is too often made that passive acoustic monitoring is something promising and something that has just started. Passive acoustic monitoring has been mature for some time already. It’s true that we haven’t achieved standardization or impact in terms of deployment or analysis, but we are, when using this technology, fairly efficient and effective for gathering rather comprehensive data about biodiversity. I don’t think we need to convince anyone anymore that this is useful and that this is a valid sampling method.

But I have a feeling that this message has not yet reached everyone who’s not using passive acoustic monitoring. It’s rather surprising for me to see that it hasn’t achieved the same level of standardization as what has been done with environmental DNA, when I think that the potential is just as big. Of course, it’s not comparable one to one, but it’s a sampling method that will enable us to have some great global insights.

Mongabay: How do you envision the future of Worldwide Soundscapes?

Kevin Darras: This is a project that is now becoming too big to be handled by only one person. I am soon going to have discussions with the people who want to be involved more deeply so that we have a team that is managing the Worldwide Soundscapes project.

We are going to continue integrating more and more data. We are also looking into automated ways to continue to grow the database from which we can then analyze data to answer macro-ecological questions. As of now, we have only shown the potential of the database. We still need to ask those big ecological questions and show that we can answer them with the database. We would also really like to reach those people in regions where passive acoustic monitoring has not been done yet.

One of the things we’re going to try to develop is something that we’ve tried already on a small scale within our network. To give you an example, I had a North African colleague who wanted to do passive acoustic monitoring in the Sahara and he obtained some recorders from a Polish colleague in the same network. It wasn’t even a loan. They were gifted to him and this enabled him to plug a gap in our coverage. I am hoping that we can develop the network in that sense, where we can loan equipment and provide knowledge for capacity building. It sounds ambitious, but sometimes it’s as simple as sending a postal parcel. I hope it will help expand the use of passive acoustic monitoring.

Photo by Nick Da Fonseca on Unsplash

By Hans Nicholas Jong / Mongabay

JAKARTA — German chemical giant BASF and French miner Eramet have pulled out of a multibillion-dollar “green energy” project in Indonesia because of its impact on one of the last Indigenous tribes on Earth living in voluntary isolation.

In an announcement on June 24, both companies said they had scrapped plans to invest up to $2.6 billion in the project on the island of Halmahera in Indonesia’s eastern province of North Maluku. The Sonic Bay project would have seen the construction of a refinery producing about 67,000 metric tons of nickel and 7,500 metric tons of cobalt a year. These metals, crucial ingredients in electric vehicle batteries, would have come from the nearby Weda Bay Nickel mine, the world’s largest nickel mine, in which Eramet holds a minority stake.

In its announcement, BASF said it would “stop all ongoing evaluation and negotiation activities for the project in Weda Bay.”

The decision came after a sustained campaign by activists voicing concerns that the Sonic Bay refinery, which is essentially an extension of the Weda Bay Nickel project, would increase the risk of Indigenous peoples in the area losing their lands. Weda Bay Nickel’s concession overlaps with rainforest that’s home to hundreds of members of the Forest Tobelo people, according to U.K.-based Indigenous rights NGO Survival International, which has lobbied both BASF and the German authorities to drop out of the project.

‘The people who live in the forest’

The Forest Tobelo tribe are among the last Indigenous groups still living in voluntary isolation from the rest of world. They are believed to number between 300 and 500 hunter-gatherer nomadic peoples whose way of life is so intricately tied to the environment that they call themselves O’Hongana Manyawa — the people who live in the forest.

Because the Forest Tobelo people avoid contact with outsiders, it’s unlikely they could ever be reasonably consulted about any projects in their area, or give their free, prior and informed consent (FPIC) for the use of their customary lands. Some tribe members have emerged from their isolation to report losing their forests to the mining concession.

As such, any investment in the Sonic Bay project would likely contribute to the ongoing destruction of the Forest Tobelo people’s forests, Survival International said.

This could be a reason why BASF and Eramet pulled out of the project, said Pius Ginting, coordinator of the Indonesian NGO Action for Ecology and Emancipation of the People (AEER). BASF’s stated reason is that the supply of battery-grade nickel in the market has eased, and that it therefore doesn’t need to invest so heavily to secure supplies.

What it doesn’t mention, however, is that its home government, Germany, is legally obligated to protect, respect and implement the rights of Indigenous and tribal peoples and improve their living and working conditions in the countries where they live. That’s because Germany in 2021 ratified the International Labour Organization’s Indigenous and Tribal Populations Convention.

That would therefore make any German company’s involvement in a project like Sonic Bay that threatens Indigenous peoples a violation of the convention, Pius said.

He also pointed out that WBN had scored poorly in a routine annual assessment of environmental parameters by Indonesia’s Ministry of Environment and Forestry. Known as the PROPER assessment, it assigns a color code to rate companies’ performance, ranging from gold to green to blue to red to black; a gold or green grade means a company exceeds legal requirements.

In 2022, Weda Bay Nickel received a red grade, meaning it failed to operate in accordance with existing environmental and social regulations.

“Even if [BASF and Eramet] said the main reason [for their withdrawal] is because of the market and the economy, we see that environmental risks are of course being considered as well due to WBN’s bad PROPER score,” Pius said.

He added their abandonment of the project should be a wake-up call for the rest of the battery metals industry and the Indonesian government to improve the environmental, social and governance (ESG) performance of the industry.

‘No-go zone’ to protect Indigenous tribe

Despite this development, WBN’s mining operation looks set to continue as the government pushes for Indonesia to become a powerhouse in the production of battery metals. This means the Forest Tobelo people will continue to be at risk of losing their forests, Survival International said.

The campaign group recently posted a video showing an uncontacted Forest Tobelo family approaching workers at a mining camp. According to Survival International, the family was asking for food after their rainforest was destroyed. It said similar scenes can be prevented by establishing a no-go zone, where no mining or other activities can take place.

Much of the nickel mined at Weda Bay goes to Chinese EV makers; the mine’s majority stakeholder is Tsingshan Holding Group, the world’s biggest nickel producer. Tesla, which doesn’t currently source nickel from Weda Bay but has signed agreements worth billions of dollars with Indonesian nickel and cobalt suppliers, said in its 2023 impact report that it was “exploring the need for a no-go zone” to protect uncontacted Indigenous peoples.

In a meeting with Survival International representatives, senior Indonesian politician Tamsil Linrung also voiced his support for the protection of the Forest Tobelo people through the establishment of a no-go zone.

“We will try to make that region a no-go zone. If not in the near future, perhaps after the next president is sworn into office [in October 2024],” he said.

Respite — for now

For now, the news that BASF and Eramet are dropping out of the refinery project provides some respite for the Forest Tobelo people, said Survival International director Caroline Pearce.

“BASF’s withdrawal means that they, at least, will not be complicit in the Hongana Manyawa’s destruction. But Eramet, and other companies, are still ripping up the rainforest and the uncontacted Hongana Manyawa simply won’t survive without it. They must stop now, for good, before it’s too late,” she said.

But another top official, Investment Minister Bahlil Lahadalia — who faces allegations of self-dealing and corruption in the revocation and reissuance of mining permits — said negotiations are still underway to get BASF and Eramet to invest in the refinery. He attributed their withdrawal to a decline in EV sales in Europe as a result of weakening purchasing power, but said this would only be temporary.

“[The project] is still pending,” he said as quoted by Indonesian news website Tempo.co. “We’re still negotiating.”

Help stop an uncontacted people being wiped out for electric car batterieshttps://act.survivalinternational.org/page/124732/action/1?locale=en-GB&_gl=1*3688ky*_ga_VBQT0CYZ12*MTczMjg5MDgxMC4xLjEuMTczMjg5MTU3Mi4wLjAuMA..

Banner: Nickel mining activities in Halmahera, North Maluku, Indonesia. Image by Christ Belseran/Mongabay Indonesia.