Dave Borlace introduces a carbon removal strategy that flips the script on high-tech engineering: instead of building massive machines, the solution lies in accelerating nature's own fastest-growing organism in the world's driest places. The piece stands out by moving beyond the theoretical promise of algae to a concrete, scalable business model that claims to sequester two billion tons of CO2 annually while actively healing ocean acidity. This isn't just another climate proposal; it's a detailed blueprint for turning coastal deserts into global carbon sinks.
The Mechanics of Accelerated Growth
Borlace frames the core innovation of the UK-based company Brilliant Planet not as a laboratory breakthrough, but as a logistical mastery of natural processes. He explains that the system pumps deep, nutrient-rich seawater into massive open-air ponds in coastal deserts, such as the site already operational in Morocco. "The carbon and nutrients in the sea water are used to feed local strains of algae as part of a greatly accelerated growth process," Borlace writes, highlighting a proprietary method that allows biomass to double in less than a day. This speed is the critical differentiator; while traditional biofuel facilities take months to achieve similar growth, this system completes the cycle in just 30 days.
The author details a three-stage lifecycle: a laboratory phase, a greenhouse phase, and a final outdoor phase where 99% of the growth occurs. "Once the algae have reproduced to fill up the largest outdoor pond they're filtered out of the water and dried out naturally under the desert sun," Borlace notes. The drying process is not merely for convenience; it is the first step in a "quadruple lock" system designed to ensure the carbon remains trapped. By cross-linking proteins and burying the dry biomass under a geo-membrane in an arid environment, the system prevents the rotting that would otherwise release the carbon back into the atmosphere.
"Brilliant Planet refers to scaling down the ocean rather than trying to scale up the laboratory."
Critics might question the energy intensity of pumping deep ocean water and the potential for evaporation in desert climates, but Borlace argues that the geography itself provides the necessary conditions. The use of locally sourced algae strains, isolated within kilometers of the site, ensures that the ecosystem is resilient and that any accidental leakage would not introduce invasive species. "Those local algae are already acclimatized to the environment and they've evolved their own built-in resiliency specific to that region," he explains, turning a potential environmental risk into a feature of the design.
The Economics of Verified Removal
The commentary shifts to the financial viability of the project, addressing the elephant in the room: how does a carbon capture project make money? Borlace is candid about the contentious nature of carbon offsetting, acknowledging that many schemes fail to deliver net benefits. However, he argues that Brilliant Planet's model succeeds because it targets the high-quality segment of the voluntary carbon market, where major corporations are willing to pay a premium for verified, permanent removal.
The author breaks down the market into tiers, noting that while 75-80% of buyers seek the cheapest credits, the most influential buyers—companies like Microsoft and Amazon—are increasingly demanding projects that meet rigorous standards. "The biggest risk for those companies is reputational if they back a project that gets exposed as fraudulent," Borlace writes. This reputational risk drives demand for projects where the carbon can be physically verified. "Companies buying credits from them can physically come and see the space where their carbon credits are stored," he adds, emphasizing the tangible nature of burying biomass in the desert versus the abstract nature of ocean-based strategies.
Furthermore, the process offers a secondary environmental benefit that strengthens its value proposition. The seawater used to grow the algae is depleted of CO2 but retains its alkalinity. When returned to the ocean, this water helps de-acidify local ecosystems. "The decarbonized water that comes out of the brilliant planet algae farms can de-acidify enormous tracts of ocean water which helps local ecosystems to thrive," Borlace points out. This dual benefit—removing carbon from the air and restoring ocean health—positions the technology as a comprehensive solution rather than a single-issue fix.
Scalability and Global Potential
Borlace concludes by looking at the global ceiling for this technology, arguing that the physical constraints are surprisingly low. He cites vast tracts of unused coastal desert land, estimating that 500,000 square kilometers worldwide could support this system. The strategy involves licensing the technology to local operators, creating jobs and economic opportunities in remote regions while leveraging local renewable energy sources like wind and solar.
The urgency of this approach is underscored by the Intergovernmental Panel on Climate Change (IPCC), which Borlace notes has made it clear that emission reductions alone are insufficient. "We're not going to decarbonize fast enough simply by reducing our current level of emissions," he writes. "We'll need to physically remove CO2 from our atmosphere as well." The argument here is that the resources—sunshine, seawater, and land—are already available; the missing piece is the deployment of the technology at scale. "If Brilliant Planet do manage to reach their goal of 2 billion tons of carbon capture per year through an environmentally beneficial process then they really will be making an enormous contribution to our global climate mitigation challenge," Borlace asserts.
"The resources are there, the underutilised seawater is there, the local algae are there, the sunshine is there, and even the renewable energy is there."
A counterargument worth considering is the logistical complexity of scaling a biological process across diverse global climates. While the Morocco site serves as a proof of concept, replicating the precise balance of local algae strains and ocean chemistry in different parts of the world presents a significant operational challenge. Borlace acknowledges the need for satellite data and local adaptation, but the sheer scale of deployment required to meet climate targets remains a formidable hurdle.
Bottom Line
Dave Borlace presents a compelling case for a biological carbon removal strategy that leverages natural speed and arid geography to achieve permanence and verification. The strongest part of the argument is the tangible nature of the sequestration method, which directly addresses the skepticism surrounding carbon offsets. However, the biggest vulnerability lies in the logistical complexity of scaling a delicate biological system globally while maintaining the rigorous quality standards that high-value buyers demand.