**The Carbon We Count and the World We See**

Across the world, we are building more wind turbines and solar farms. Yet the amount of carbon dioxide in the atmosphere keeps rising. How can both be true? Think of a reservoir. Even if we slow the water flowing in, the level will keep rising as long as more water enters than leaves. Carbon dioxide behaves in much the same way. Land and oceans absorb part of what we release. The rest accumulates. Renewable energy can slow that accumulation by displacing fossil fuels, but the atmosphere responds to the total balance. We must also count the carbon released in building the systems that will replace fossil fuels. A solar panel burns no fuel as it generates electricity, yet making and transporting it takes materials and energy. These *embodied emissions* are generally much smaller, per unit of electricity, than the lifetime emissions of fossil generation. As we expand renewable energy, we can reduce those emissions further by using cleaner power and heat in the factories that make the equipment. This is where I see a role for CRT. With the 1 MW demonstrator, we want to find out whether we can capture carbon dioxide, use hydrogen to turn it into methane, and trace the carbon as the system supplies useful power and cooling. When the methane is burned, its carbon returns to the exhaust as carbon dioxide. How much can we capture again? How much escapes? How much energy does the process use? The measurements will tell us whether the system delivers the same services with lower emissions over its lifetime. Beneath this work lies a question that is deeply personal to me. **The world is seen. But who is the seer?** Quantum physics asks what happens when we measure the world. The question I return to is what it means to be aware of a world at all. I can observe a landscape, a sensation, even a thought about myself. What is it that is aware of them? I want to keep both inquiries open. At the demonstrator, that means following the carbon and being honest about what we can verify. In my own life, it means turning some of the attention I give to the world toward the awareness in which I encounter it.

How cheap solar energy can help defossilise an economy through CRT

Cheap solar electricity offers opportunities beyond replacing fossil-fuel power generation. It can also help replace the fossil carbon used to produce fuels, industrial heat and chemical feedstocks. Carbon Recycling Technology (CRT) could bridge these two opportunities by using low-cost solar energy to convert captured CO₂ back into useful carbon-based products, reducing the need to continually extract fresh coal, oil, and gas. Solar supplies the energy; recycled carbon supplies the material Fossil fuels provide both energy and carbon. Solar electricity can replace the energy directly in many applications, but some industries still need carbon-containing molecules as fuels or raw materials. CRT aims to meet that need by recycling carbon already in use. Rather than releasing CO₂ after a single use and replacing it with newly extracted fossil carbon, the approach captures and converts it into another useful input. Solar energy supplies the energy required for that conversion, including the production of hydrogen where the process requires it. CO₂ is the carbon source; it is not an energy source. The economic opportunity is reduced fossil fuel dependence Where conversion costs are competitive, cheap solar electricity could turn carbon recycling into a practical substitute for purchasing fresh fossil inputs. Each successful recycling cycle can reduce the amount of new fossil carbon required for a given output. Across a plant’s operating life, those savings could accumulate. Replicated across industrial sites, the model could reduce fossil fuel imports, exposure to fuel price volatility and demand for further extraction. The scale of the benefit depends on the complete system: solar electricity costs, conversion efficiency, equipment utilisation, hydrogen requirements, capture costs and carbon losses. Low electricity prices are a powerful advantage, but the delivered product must remain competitive after all these costs are included. Connecting variable solar supply with continuous industry Industrial plants often need continuous operation, while solar generation varies. A viable CRT project therefore needs an operating strategy that connects the two. Depending on the configuration, this could involve flexible conversion equipment, hydrogen or product storage, thermal storage, or complementary electricity supplies. Producing and storing useful molecules during periods of abundant solar generation could help extend solar energy’s role beyond daylight hours. Direct electrification remains valuable wherever it is practical and efficient. CRT’s strongest role is likely to be where industry needs carbon molecules or where recycled fuels offer a workable route to replacing fossil inputs. Measure the benefit across the whole plant The test is straightforward: how much fresh fossil fuel does the integrated system avoid, and how much does it reduce total lifecycle emissions? That assessment must include capture and conversion energy, upstream inputs, leakage, uncaptured emissions and the eventual use of the product. Carbon reused inside a controlled industrial system has a different outcome from fuel sold and burned without recapture. A credible project should demonstrate: • Lower fresh fossil fuel consumption for the same useful output. • Lower lifecycle greenhouse gas emissions. • Competitive production costs. • Reliable operation under realistic energy supply conditions. Scaling towards a defossilised economy Defossilisation means progressively replacing newly extracted fossil resources with other energy and material sources. Cheap solar energy, combined with effective carbon recycling, could support that transition by letting industry reuse carbon while drawing more energy from the sun. This would reduce the flow of additional fossil carbon into the atmosphere. Lowering the existing atmospheric CO₂ concentration also requires global emissions to fall below natural and deliberate removals; recycling alone does not establish that outcome. The opportunity for CRT is to demonstrate that solar-powered carbon reuse can deliver measurable fuel savings, competitive industrial products and lower emissions—then replicate the configurations that work.

Replicating Nature: The Science of Carbon Circulation

CEWT | Engineering and ESG discussion paper | 8 November 2026 Nature has sustained life through the circulation of carbon among the atmosphere, plants, animals, soil, and oceans. The engineering question is whether industry can replace linear fossil-carbon extraction with carefully measured circular-carbon systems. 1. What Nature does with CO₂ Photosynthesis uses sunlight to convert carbon dioxide and water into energy-rich organic matter. Respiration uses oxygen to release biochemical energy and returns CO₂ and water. Digestion makes food nutrients available; cellular respiration is the primary CO₂-generating energy process. Photosynthesis: 6 CO₂ + 6 H₂O + sunlight → C₆H₁₂O₆ + 6 O₂ Cellular respiration: C₆H₁₂O₆ + 6 O₂ → 6 CO₂ + 6 H₂O + energy Carbon circulates, while energy enters the natural system principally from sunlight. Natural carbon cycling is not perfectly closed; geological storage and exchanges with oceans also matter. 2. Carbon cycling compared with CEWT CRT Figure 1. Conceptual analogy between photosynthesis/respiration and renewable-energy-driven methanation/trigeneration. For CRT, recovered CO₂ reacts with externally produced renewable hydrogen to regenerate methane. Combustion or other oxidation can then release energy, after which CO₂ must be captured again to close the intended carbon loop. Methanation: CO₂ + 4 H₂ → CH₄ + 2 H₂O Methane combustion: CH₄ + 2 O₂ → CO₂ + 2 H₂O 3. What changed with industrialisation? Fossil-fuel extraction transfers carbon stored in geological reservoirs over very long periods into the active atmosphere–ocean–biosphere cycle. Natural sinks absorb a substantial part of anthropogenic CO₂ emissions, but not all; the remaining accumulation increases atmospheric CO₂ and warms the climate through its greenhouse effect. 4. Can CRT stabilise atmospheric CO₂? Stabilising human-induced CO₂ warming requires global net CO₂ emissions to reach approximately zero. Reducing atmospheric CO₂ concentrations requires net removal. CRT may reduce demand for freshly extracted fossil carbon if it uses low-emissions energy, avoids leakage and achieves substantial capture and recycling; it does not by itself guarantee carbon neutrality or atmospheric CO₂ removal. Source of carbon Engineering implication CO₂ from existing exhaust May displace fossil-carbon inputs; residual and upstream emissions still count. CO₂ captured from air Draws on atmospheric carbon; substantial capture energy and cost must be included. 5. ESG by Design, Not by Declaration The meaningful metric is cumulative net greenhouse-gas emissions across the complete lifecycle, including embodied plant emissions, electricity imports, hydrogen production, methane leakage, CO₂ recovery losses, construction and decommissioning. Carbon conservation is not energy conservation: repeated fuel regeneration needs a continual external energy input, and irreversibilities cause losses. 6. CEWT proposition Replicating Nature — From Carbon Extraction to Carbon Circulation Industry can investigate a transition from extracting and releasing geological carbon to recovering and circulating carbon already in productive systems. CEWT’s CRT is one candidate pathway: recover CO₂, produce hydrogen using additional low-emissions power, synthesize reusable fuel, deliver electricity/heat/cooling, and recover the resulting CO₂. The environmental benefit must be demonstrated through complete mass, energy and lifecycle carbon balances, not assumed from the presence of recycling alone. Engineering tests before claiming climate benefit • Quantify all carbon entering, circulating within, and leaving the system boundary. • Measure renewable electricity imported for electrolysis, capture, compression and auxiliaries. • Verify CO₂ capture, methane leakage, recycle purity, conversion and purge losses. • Compare lifecycle emissions and fossil-carbon displacement with a credible reference system. Selected background references IPCC, AR6 Synthesis Report (2023): https://www.ipcc.ch/report/ar6/syr/ IEA, Putting CO₂ to Use (2019): https://www.iea.org/reports/putting-co2-to-use

COP31: Carbon Recycling Should Become the Next ESG Agenda

COP31: Carbon Recycling Should Become the Next ESG Agenda As COP31 begins in Türkiye, I believe we must expand the conversation from carbon emissions to carbon management across the entire industrial lifecycle. Solar panels, batteries, transmission infrastructure, and conventional power plants all carry embodied emissions. Reducing operational emissions is essential, but it is only part of the challenge. Nature demonstrates the importance of carbon circulation. Industry should examine how engineering can apply similar principles. Treat carbon not merely as waste, but as a potential resource that can be recovered, recycled, and reused. At Clean Energy and Water Technologies (CEWT), we are exploring this principle through Carbon Recycling Technology (CRT), integrating CO₂ recovery, hydrogen, methanation, electricity generation and useful heat recovery. The environmental benefit must be established through complete mass and energy balances, lifecycle assessment and independently verified emissions reductions. The next ESG agenda should move beyond declarations towards measurable circular-carbon engineering. Carbon recycling is not a substitute for reducing emissions. It is another pathway that deserves rigorous scientific, engineering, and economic evaluation. ESG by Design, Not by Declaration. #COP31 #CarbonRecycling #CircularEconomy #ESG #Decarbonisation #ChemicalEngineering #CEWT Now Available on Amazon Kindle:

ESG by Design, Not ESG by Declaration

A proposed CEWT thought-leadership article series True sustainability begins at the drawing board, not in the annual sustainability report. At Clean Energy and Water Technologies (CEWT), the proposition behind Carbon Recycling Technology (CRT) is that environmental, social, and governance principles should be integrated into process design, resource balances, operational safeguards, and reporting systems—not added as an afterthought. 1. Environmental Integrity Carbon recycling, thermodynamic boundaries, resource conservation and lifecycle emissions. The engineering objective is to recover and reuse carbon, manage water and useful heat, and measure residual impacts across the complete system—not merely an individual process unit. 2. Social Responsibility Reliable power, responsible water use, industrial development and community benefits. For AI data centres, this includes examining electricity and water demands, safety, local infrastructure impacts and the value of useful cooling and heat. 3. Governance Through Engineering Transparent carbon and hydrogen ledgers, independently verified mass and energy balances, operational monitoring and measurable performance. Governance should make environmental claims traceable to engineering data. From principle to proof Embedding ESG in the design is a commitment to measurable performance, not proof that the completed system achieves net-zero emissions. CRT claims should be assessed against defined alternatives using consistent system boundaries, renewable electricity accounting, lifecycle emissions, resource consumption, and independent verification. Central message: ESG is not a declaration of intent; it is an engineering discipline that must be demonstrated through evidence.