Isometric Project Audit Started
This project is in a public comment period from 01 Aug 2025 until 30 Aug 2025.
Overview of the Moser River Restoration Project
The Moser River has faced challenges from acid rain, which has made the water more acidic and less healthy for fish, wildlife, and people who enjoy the river. Over time, this has hurt salmon, trout, and eel populations, while also reducing the river’s cultural and recreational value.
CarbonRun is working with the community to restore the health of the river through a process called River Alkalinity Enhancement (RAE). This involves carefully adding finely crushed natural limestone to the river. The limestone balances the water’s chemistry, creates a better environment for fish, and also helps remove carbon dioxide from the atmosphere.
We know the Moser River means a lot to local residents, anglers, and visitors. That’s why this project is built on community involvement and transparency. Together, we can:
- Restore fish populations like Atlantic salmon and brook trout
- Protect a place that matters for culture, recreation, and future generations
- Contribute to climate solutions that reach far beyond our community
Why the Moser River?
The Moser River has been affected by freshwater acidification, a long-standing environmental issue in Nova Scotia. Acid rain—caused by industrial air pollution—has changed the chemistry of rivers like the Moser, leading to habitat loss and the decline of important species such as Atlantic salmon, brook trout, and American eel.
These environmental changes have also affected the cultural and recreational value of the river, especially for those with deep connections to fishing and the surrounding landscape.
Despite these challenges, the Moser River remains an important ecological and cultural area. It continues to provide habitat for wildlife and opportunities for recreation and community use.
How the project works
When limestone is added to the acidic river water it reacts with CO₂ to create a molecule known as bicarbonate, which is a relatively stable version of carbon that would naturally be present if the river was not acidic. The bicarbonate is then carried to the ocean where it's stored for over 1,000 years and will contribute to the health of marine species that rely on molecules like bicarbonate, such as oysters, clams and plankton. CarbonRun measures how much additional carbon is safely locked away and sells Carbon Credits to companies interested in supporting climate action. The revenue from the sale of carbon credits is used to pay for the river restoration.
CarbonRun is leading the river restoration initiative on the Moser River focused on combatting the negative effects of acid rain, restoring local ecosystems, and removing carbon from our atmosphere. The Moser River project builds on a successful history of river liming in Nova Scotia, such as the Nova Scotia Salmon Association's trailblazing project on the West River, Sheet Harbour, where Atlantic Salmon populations have improved. The Moser River will be supported by a comprehensive water quality monitoring program to ensure that RAE is safe and effective for the local ecosystem. Our goal is to provide transparent, evidence-based information as the project progresses.
Working with the Community
CarbonRun recognizes that any efforts to restore the river must reflect the values, needs, and knowledge of local residents. Community input will play an important role in shaping this work. We’re committed to providing clear, accessible information and creating space for ongoing dialogue.
This website is a place where you can:
- Learn more about the project
- Ask questions and share feedback
- Follow updates and results over time
We invite you to explore the site, stay informed, and take part in the conversation as the project develops.
Exploring Moser
Here are some photos of our first steps in the area.
FAQ
Frequently asked questions and more information about our solution.
A Doser is a 12’x40’ skirted silo sitting on a 22’x22’ pad and is used to hold the limestone, similar to silos you’d see on farmland. The Doser is designed to blend with the surroundings and runs quietly with minimal visual impact.
On the riverbank upstream of Wilson Falls, just off of Ton Timber Hills Rd. Check out the Doser pin on our interactive map.
A small forested area of about 25 m x 20 m near the river was cleared to place the lime doser and an area of 450m² was cleared for the solar array
No, there is no monetary cost to the community.
The project is not government-funded; our business model is based on selling carbon credits generated by our proprietary river alkalinity enhancement process. This method removes carbon dioxide from the atmosphere and stores it permanently in the ocean, creating verified carbon credits. Businesses purchase these credits to directly invest in and support our carbon removal efforts, enabling us to operate and scale our solutions.
Yes. Because we work near the river, we must adhere to all reregulations that protect the waterway, water quality, fish and fish habitat. The Federal Fisheries Act and provincial regulations such as watercourse alteration permitting and water withdrawal permitting all apply to this work.
Limestone fully dissolves downstream, naturally balancing river chemistry. There is a zone below the lime doser where it may be visible as it dissolves. CarbonRun’s system is automated to optimize mixing and avoid dosing during low water levels or when conditions are not favourable.
Dosers are installed for long-term restoration but can be removed if needed, with full site restoration.
Our team handles all maintenance and monitoring—there's nothing you need to do.
No, the Doser operates quietly and uses only natural limestone, which has no odor.
Yes, the water remains safe for pets, livestock, and wildlife.
Yes, and you can expect that fishing will improve!
It helps restore your local river, support fish populations, and contribute to climate solutions—all at no cost to you.
CarbonRun in the News
Land acknowledgement
We acknowledge CarbonRun operates on the traditional land and waterways of the Mi'kmaq people. This land was historically agreed to be shared through the covenant chain of Treaties of Peace and Friendship. Over time, the Mi'kmaq people have been increasingly excluded from this land. We now must reconcile how we reshare this land and the benefits it has and continues to provide.
We must do more than simply acknowledge this injustice. Given the cultural and ecological significance of healthy rivers, CarbonRun endeavors to restore watersheds and mitigate the impact of climate change together with the Mi'kmaq people.
