CarbonRun

Unlocking Industrial-Scale CDR through Hydroelectric River Alkalinity Enhancement
Sector: Marine
Technology: Carbon Management
NorthX Backing: $700,000
Project Value: $2,000,000
Project Status: Active

CarbonRun is a Nova Scotia-based company founded in 2022 by environmental scientists and freshwater ecologists to combat climate change through innovative river restoration techniques. With deep expertise spanning environmental science, engineering, and sustainability, CarbonRun works collaboratively to restore damaged ecosystems, protect aquatic life, and enhance biodiversity—creating a healthier planet for future generations. 

The Problem

Decades of acid rain and industrial emissions have dramatically increased the acidity of rivers across Canada, threatening fish stocks and other sensitive aquatic species. Climate change is making matters even worse, raising water temperatures and stressing already fragile ecosystems.

Historically, we’ve counteracted acidification with “liming programs” which add high-pH limestone to increase alkalinity. However, these programs are slow, costly, and limited in scale. With global warming accelerating, we need solutions that can restore river health and remove climate-change-causing carbon from the atmosphere—fast.

The Solution

Enhancing river alkalinity to sequester CO₂ and strengthen aquatic ecosystems.

CarbonRun’s technology is the first in the world to use a safe, proven river restoration approach to decrease river acidity through river alkalinity enhancement in a way that also naturally delivers carbon to the ocean, preventing it from returning to the atmosphere.

Through placements at hydroelectric sites, CarbonRun takes advantage of consistent water flows, existing infrastructure, and access to large rivers, which are ideal conditions for efficiently restoring pH and capturing CO₂ at scale.

Through NorthX’s support, CarbonRun will develop and pilot its HydroRAE system, transforming hydro facilities into active engines of river restoration and climate mitigation. NorthX is supporting this work by providing technical expertise, monitoring and modeling capacity, and helping CarbonRun to build a playbook to replicate HydroRAE at large-scale.

While piloted in Nova Scotia, this technology can be applied across the country given the abundance of hydroelectric sites, such as in BC.

“CarbonRun’s goal is to harness rivers to remove carbon dioxide, restore ecosystems, and improve water quality at scale. This project funded by NorthX will help us unlock a new method to do this at industrial-scale by leveraging hydropower. Thanks to NorthX, we will be able to accelerate our ability to demonstrate HydroRAE as a globally replicable solution for long-term CO₂ storage and healthier rivers.”
Dr. Shannon Sterling, Founder, COO, and CSO, CarbonRun

The B.C. Centre for Innovation and Clean Energy (CICE) is now NorthX

Converge 2025 is SOLD OUT. Join us next year!