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Rio Tinto has taken a decisive step toward reshaping the future of copper supply. The mining major announced a strategic collaboration with Amazon Web Services (AWS) that connects breakthrough mining technology with surging demand from data centers and artificial intelligence. Under the agreement, AWS became the first customer of Nuton® Technology following its successful industrial-scale deployment at the Johnson Camp copper mine in the United States.

The deal links cleaner copper production with the digital infrastructure powering the global AI economy.

How AWS Cloud Technology Is Powering Nuton’s Bioleaching Breakthrough

Nuton, a Rio Tinto venture, focuses on nature-based bioleaching technologies designed to extract copper from low-grade and previously uneconomic ores. Last month, the company achieved a major milestone by deploying its proprietary system at an industrial scale at Gunnison Copper’s Johnson Camp mine in Arizona.

NUTON rio tinto copper
Source: Nuton

The press release highlights that under the two-year agreement, AWS will use the first Nuton-produced copper in components across its U.S. data centers. Copper is essential to these facilities, playing a critical role in electrical cables, busbars, transformers, motors, printed circuit boards, and processor heat sinks.

At the same time, AWS will also provide cloud-based data and analytics to support Nuton’s operations. This digital support will speed up process optimization and improve copper recovery.

AWS platforms will simulate heap-leach performance and feed advanced analytics into Nuton’s decision systems. As a result, the company can fine-tune acid and water use. It can also better predict copper recovery.

Significantly, Amazon’s Chief Sustainability Officer Kara Hurst said the company’s net-zero goal for 2040 requires innovation across all operations, including how it sources materials for its infrastructure.

She also noted:

“This collaboration with Nuton Technology represents exactly the kind of breakthrough we need—a fundamentally different approach to copper production that helps reduce carbon emissions and water use. As we continue to invest in next-generation carbon-free energy technology and expand our data centre operations, securing access to lower-carbon materials produced close to home strengthens both our supply chain resilience and our ability to decarbonize at scale.”

Microbe-Driven Copper, Digitally Scaled

Nuton’s modular bioleaching system uses naturally occurring microorganisms to extract copper from primary sulphide ores. Unlike traditional mining methods, the process avoids energy-intensive crushing, concentrating, and smelting.

When combined with digital tools, the technology can scale faster and adapt to different ore bodies. Overall, this approach shortens the path from pilot testing to full production. At the same time, it lowers environmental impact.

Shorter Supply Chains and Cleaner Copper

Additionally, Nuton’s process produces 99.99% pure copper cathode directly at the mine gate. This eliminates the need for concentrators, smelters, and refineries, significantly shortening the mine-to-market supply chain.

Compared with traditional processing routes, Nuton is expected to use substantially less water and generate lower carbon emissions. The system also recovers copper from material previously classified as waste, improving overall resource efficiency.

At Johnson Camp, these benefits are already material. The mine is now the lowest-carbon primary copper producer in the United States on a mine-to-refined-metal basis commonly used by the industry.

copper
Source: Nuton

Verified Low Carbon and Water Footprints

A third-party life cycle assessment confirmed that Nuton copper from Johnson Camp is expected to have a full-scope carbon footprint of 2.82 kg CO₂e per kilogram of copper, covering Scope 1, 2, and 3 emissions. By comparison, global primary copper production typically ranges from about 1.5 to 8.0 kg CO₂e per kilogram, depending on technology and location.

Nuton has also matched 100% of the site’s electricity consumption by purchasing 134,000 Green-e Energy certified renewable energy certificates. Water intensity is expected to be 71 liters per kilogram of copper, well below the global industry average of roughly 130 liters.

Skarn Associates independently validated both the carbon and water intensity data. Additional environmental benefits include lower energy use, on-site clean energy generation, and zero tailings, removing the risk of tailings dam failures.

A Strategic Copper Asset for the United States

Johnson Camp is one of the largest open-pit copper projects in the U.S., with measured and indicated resources of 551 million tons at an average grade of 0.35% copper. At scale, it could supply around 8% of recent annual U.S. domestic copper production.

The project is targeting production of approximately 30,000 tonnes of refined copper over a four-year deployment period. This comes as the U.S. has formally designated copper as a critical mineral due to its importance for energy systems, digital infrastructure, and national security.

u.s. copper
Data Source: USGS

IEA and S&P Global Warn of Surging Demand and Supply Risks

The International Energy Agency (IEA) has highlighted that the rapid growth of artificial intelligence is driving a sharp expansion of data centers worldwide. While estimates vary widely, the IEA notes that copper use in data centers could reach 250,000 to 550,000 tonnes by 2030, accounting for up to 12% of global copper demand, depending on how quickly AI adoption accelerates.

demand copper
Source: IEA

At the same time, a fresh analysis from S&P Global has warned that growth in artificial intelligence, electrification, and defense could push global copper demand up by 50% by 2040. However, without major investment in new mining projects and recycling, supply is expected to fall short.

global copper demand
Source: S&P Global

Yet, as existing copper resources age and ore grades decline, the market could face a 10 million metric ton annual supply shortfall by 2040.

copper demand and supply
Source: S&P Global

Why the Rio Tinto–AWS Deal Matters

Against this backdrop, the collaboration between Rio Tinto and AWS carries strategic weight. It connects low-carbon copper supply directly with one of the world’s fastest-growing sources of demand. It also shows how digital infrastructure and nature-based mining solutions can work together to reduce emissions while expanding supply.

As AI, electrification, and energy transition pressures continue to build, innovations like Nuton’s bioleaching technology could play a critical role in closing the global copper gap—cleanly, efficiently, and at scale.

To summarize the importance of this deal, Rio Tinto Copper Chief Executive Katie Jackson said, 

“This collaboration is a powerful example of how industrial innovation and cloud technology can combine to deliver cleaner, lower-carbon materials at scale. Nuton has already proven its ability to rapidly move from idea to industrial production, and AWS’s data and analytics expertise will help us to accelerate optimisation and verification across operations.

She further added:

“Importantly, by bringing Nuton copper into AWS’s U.S. data-centre supply chain, we’re helping to strengthen domestic resilience and secure the critical materials those facilities need, closer to where they’re used. Together we can supply the copper critical to modern data infrastructure while demonstrating how mining can contribute to more sustainable supply chains.”

The post Rio Tinto and Amazon Web Services (AWS) Join Forces to Supply Low-Carbon Copper for U.S. Data Centers appeared first on Carbon Credits.

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Why a forest with more species stores more carbon

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A forest is not just trees. The number of species it holds, from canopy giants to understorey shrubs to soil fungi, directly determines how much carbon it can absorb, and, more importantly, how much it can keep over time. Buyers of carbon credits increasingly ask a reasonable question: Is the carbon in this project long-lasting? The science of biodiversity has a clear answer.

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OpenAI Hits Pause on $40B UK AI Project: Energy Costs Shake Data Center Economics

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OpenAI Hits Pause on $40B UK AI Project: Energy Costs Shake Data Center Economics

ChatGPT developer OpenAI has paused its flagship UK data center project, known as “Stargate UK,” citing high energy costs and regulatory uncertainty. The project was part of a broader £31 billion ($40+ billion) investment plan aimed at expanding artificial intelligence (AI) infrastructure in the country.

The initiative was designed to deploy up to 8,000 GPUs initially, with plans to scale to 31,000 GPUs over time. It was aimed to boost the UK’s “sovereign compute” capacity. This means building local infrastructure to support AI development and reduce reliance on foreign systems.

However, the company has now paused development. An OpenAI spokesperson stated that they:

“…support the government’s ambition to be an AI leader. AI compute is foundational to that goal – we continue to explore Stargate UK and will move forward when the right conditions such as regulation and the cost of energy enable long-term infrastructure investment.”

Energy Costs Are Now a Core Constraint

The main issue is energy. AI data centers require large amounts of electricity to run GPUs and cooling systems.

In the UK, industrial electricity prices are among the highest in developed markets. Recent estimates show costs at around £168 per megawatt-hour, compared to £69 in France and £38 in Texas. This gap creates a major disadvantage for large-scale data center investments.

AI workloads are especially power-intensive. A single large data center can consume as much electricity as tens of thousands of homes. As AI adoption grows, this demand is rising quickly.

Globally, the International Energy Agency estimates that data centers could consume over 1,000 terawatt-hours (TWh) of electricity by 2030, up sharply from about 415 TWh in 2024. This growth is largely driven by AI. 

data center electricity use 2035
Source: IEA

The result is clear. Energy is no longer just a cost. It is a key factor in where AI infrastructure gets built.

Regulation Adds Another Layer of Risk

Energy is only part of the challenge. Regulation is also slowing investment. In the UK, uncertainty around AI rules, especially copyright laws for training data, has created hesitation among companies.

Earlier proposals to allow AI firms to use copyrighted content were withdrawn after backlash. This left companies without clear guidance on compliance.

For large infrastructure projects, this uncertainty increases risk. Data centers require billions in upfront investment. Companies need stable rules before committing capital.

Planning delays and grid connection timelines also add friction. These factors increase both cost and project timelines.

Together, energy costs and regulatory uncertainty create a difficult environment for hyperscale AI infrastructure.

OpenAI’s Global Infrastructure Expands, But More Selectively

Despite the pause, ChatGPT-maker is still expanding globally. The company is investing heavily in AI infrastructure through partnerships with Microsoft, NVIDIA, and Oracle. It is also linked to a much larger $500 billion “Stargate” initiative in the United States, focused on building next-generation AI data centers.

At the same time, the company faces rising costs. Reports suggest OpenAI could lose billions of dollars annually as it scales infrastructure to meet demand.

This reflects a broader industry shift. AI is becoming more like energy or telecom infrastructure. It requires large capital investment, long timelines, and stable operating conditions.

The pause also highlights a deeper issue. AI growth is increasing pressure on energy systems and the environment.

The Hidden Carbon Cost Behind Every AI Query

ChatGPT and similar tools rely on large data centers. These facilities already account for about 1% to 1.5% of global electricity use. Projections for their energy use vary widely due to various factors. 

Each individual query may seem small. A typical ChatGPT request can use about 0.3 watt-hours of electricity, which is relatively low. However, usage at scale changes the picture.

ChatGPT now serves hundreds of millions of users. Even small energy use per query adds up quickly. Training models is even more energy-intensive. For example, training GPT-3 required about 1,287 megawatt-hours of electricity and produced roughly 550 metric tons of CO₂.

chatgpt environmental footprint

Newer models are even larger. Some estimates suggest training advanced models like GPT-4 could emit up to 15,000 metric tons of CO₂, depending on the energy source.

At the system level, the impact is growing fast. AI systems could generate between 32.6 and 79.7 million tons of CO₂ emissions in 2025 alone. By 2030, AI-driven data centers could add 24 to 44 million tons of CO₂ annually.

AI servers annual carbon emissions
Note: carbon emissions (g) of AI servers from 2024 to 2030 under different scenarios. The red dashed lines in e–g denote the forecast footprint of the US data centres, based on previous literature. Source: https://doi.org/10.1038/s41893-025-01681-y

Looking further ahead, global generative AI emissions could reach up to 245 million tons per year by 2035 if growth continues. These numbers show a clear pattern. Efficiency is improving, but total demand is rising faster.

Big Tech Scrambles to Balance AI Growth and Emissions

OpenAI has not published a detailed standalone net-zero target. However, its operations rely heavily on partners such as Microsoft, which has committed to becoming carbon negative by 2030.

The company has acknowledged that energy use is a real concern. Leadership has pointed to the need for more renewable energy, including nuclear and clean power, to support AI growth.

Across the industry, companies are responding in several ways:

  • Improving model efficiency to reduce energy per query
  • Investing in renewable energy and long-term power contracts
  • Exploring new cooling systems to reduce water and energy use

Efficiency gains are already visible. Some AI systems have reduced energy per query by more than 30 times within a year, showing how quickly technology can improve. Still, total emissions continue to rise because demand is scaling faster than efficiency gains.

The Global AI Infrastructure Race

The pause in the UK highlights a larger trend. AI infrastructure is becoming a global competition shaped by energy, policy, and cost.

Regions with lower energy prices and faster permitting processes have an advantage. The United States and parts of the Middle East are attracting large-scale AI investments due to cheaper power and supportive policies.

At the same time, governments are trying to attract these projects. The UK has pledged billions to support AI growth and improve compute capacity. But this case shows that policy ambition alone is not enough. Companies need reliable energy, clear rules, and predictable costs.

AI’s Next Phase Will Be Decided by Energy, Not Code

The decision by OpenAI does not signal a retreat from AI investment. Instead, it reflects a shift in priorities.

Companies are becoming more selective about where they build infrastructure. They are focusing on locations that offer the right mix of energy access, cost stability, and regulatory clarity.

The UK project may still move forward, but only if conditions improve. For now, the message is clear. The future of AI will not be shaped by technology alone. It will also depend on energy systems, policy frameworks, and long-term investment conditions.

The post OpenAI Hits Pause on $40B UK AI Project: Energy Costs Shake Data Center Economics appeared first on Carbon Credits.

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U.S. Uranium Mining Returns: UEC Launches First New Mine in a Decade

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U.S. Uranium Mining Returns: UEC Launches First New Mine in a Decade

Uranium Energy Corporation (NYSE: UEC) has started production at its Burke Hollow project in South Texas. This is the first new uranium mine to open in the U.S. in over ten years.

The project started production in April 2026 after getting final regulatory approval. This marks a big step for domestic uranium supply. It’s also the world’s newest in-situ recovery (ISR) uranium mine, which shows a move toward less harmful extraction methods.

Burke Hollow was originally discovered in 2012 and spans roughly 20,000 acres, with only about half of the site explored so far. This suggests significant long-term expansion potential as additional wellfields are developed.

The mine’s output will go to UEC’s Hobson Central Processing Plant in Texas. This plant can produce up to 4 million pounds of uranium each year.

A Scalable ISR Platform Expands U.S. Uranium Capacity

The Burke Hollow launch transforms UEC into a multi-site uranium producer in the United States. The company runs two active ISR production platforms. The second one is at its Christensen Ranch facility in Wyoming; both are shown in the table from UEC.

UEC burke hollow resources

UEC Christensen Ranch resources

This “hub-and-spoke” model allows uranium from multiple wellfields to be processed through centralized facilities, improving efficiency and scalability. UEC’s operations in Texas and Wyoming are now active. This gives them a licensed production capacity of about 12 million pounds per year across the U.S.

ISR mining plays a key role in this strategy. Unlike conventional mining, ISR involves circulating solutions underground to dissolve uranium and pump it to the surface. This reduces surface disturbance and can lower environmental impact compared to open-pit or underground mining.

Burke Hollow is the largest ISR uranium discovery in the U.S. in the last ten years. This boosts its long-term value as a domestic resource.

Unhedged Strategy Pays Off as Uranium Prices Rise

UEC’s production launch comes at a time of strong uranium market conditions. The company uses a fully unhedged strategy. This means it sells uranium at current market prices instead of securing long-term contracts.

This approach has recently delivered strong financial results. In early 2026, UEC sold 200,000 pounds of uranium for $101 each. This price was about 25% higher than average market rates. The sale brought in over $20 million in revenue and around $10 million in gross profit.

The strategy allows the company to benefit directly from rising uranium prices, which have been supported by:

  • Growing global nuclear energy demand
  • Supply constraints in key producing regions
  • Increased long-term contracting by utilities

Unhedged exposure raises risk in downturns, but offers more upside in strong markets. UEC is currently taking advantage of this.

Nuclear Energy Growth Is Driving Demand for Uranium

The timing of Burke Hollow’s launch aligns with a broader global shift back toward nuclear energy. Governments are increasingly turning to nuclear power as a reliable, low-carbon energy source.

nuclear power capacity additions IAEA projection 2024 to 2050
Source: IAEA

The International Atomic Energy Agency projects that global nuclear capacity could double by 2050, depending on policy and investment trends. This would require a significant increase in uranium supply.

In the United States, nuclear energy accounts for around 20% of electricity generation. It also produces zero carbon emissions during operations. This makes it a key component of many net-zero strategies.

There are several factors supporting renewed nuclear demand, including:

  • Development of small modular reactors (SMRs)
  • Extension of existing nuclear plant lifetimes
  • Government funding to maintain nuclear capacity
  • Rising electricity demand from data centers and electrification

As demand grows, securing a reliable uranium supply becomes increasingly important.

uranium demand and supply UEC

Reducing Import Risk: A Strategic Domestic Supply Push

The Burke Hollow project also addresses a major vulnerability in U.S. energy policy. The country currently imports about 95% of its uranium needs, leaving it exposed to global supply risks.

A large share of uranium production and enrichment capacity is concentrated in a few countries, including Russia and Kazakhstan. This concentration has raised concerns about supply disruptions and geopolitical risk.

uranium production US 2025 EIA

By expanding domestic production, UEC is helping to reduce reliance on imports and strengthen the U.S. nuclear fuel supply chain.

The company’s broader strategy includes building a vertically integrated platform covering mining, processing, and, eventually, uranium conversion. This approach aligns with U.S. government efforts to rebuild domestic nuclear fuel capabilities.

Federal programs have allocated billions to boost uranium production and enrichment. This shows how important the sector is.

Two Hubs, One Strategy: Wyoming Supports the Texas Breakthrough

While Burke Hollow is the main focus, UEC’s Christensen Ranch operation in Wyoming remains an important part of its production base.

The Wyoming site has recently received approvals for expanded wellfield development, allowing it to increase output alongside the Texas operation.

Together, the two sites form the foundation of UEC’s dual-hub production model. However, it is the Texas project that marks the first new U.S. uranium mine in over a decade, making it the central milestone in the company’s growth strategy.

Investor Momentum Builds Around Uranium Revival

The restart of U.S. uranium production is drawing strong attention from investors and industry players. Uranium markets have tightened in recent years, driven by rising demand and limited new supply.

UEC’s production launch has already had a positive market impact. The company’s share price rose following the announcement, reflecting investor confidence in its growth strategy.

UEC stock price

At the same time, utilities are increasing long-term contracting activity to secure fuel supply. This trend is expected to continue as new nuclear capacity comes online and existing plants extend operations.

Industry forecasts suggest that uranium demand will remain strong through the 2030s, supporting higher prices and increased investment in new production.

Lower Impact Mining, Higher ESG Expectations

The use of ISR mining at Burke Hollow reflects a broader shift toward more sustainable extraction methods. ISR typically reduces land disturbance and avoids large-scale excavation.

However, environmental management remains critical. Key issues include groundwater protection, chemical use, and long-term site restoration.

UEC has emphasized environmental controls and regulatory compliance in its operations. These efforts are important for maintaining social license and meeting ESG expectations.

From a climate perspective, uranium production plays an indirect but important role. Supporting nuclear energy, it helps enable low-carbon electricity generation and reduces reliance on fossil fuels.

The Bottom Line: A Defining Moment for U.S. Uranium Production

The launch of the Burke Hollow mine marks a major milestone for the U.S. uranium sector. It ends a decade-long gap in new mine development and signals renewed momentum in domestic production.

In the short term, it strengthens supply and supports rising uranium markets. In the long term, it highlights the growing role of nuclear energy in global decarbonization strategies.

UEC’s Burke Hollow shows that new uranium projects can advance in today’s market. There are still challenges, like scaling production and handling environmental risks, but progress is possible.

As demand for nuclear energy continues to grow, domestic projects like Burke Hollow will play a key role in shaping the future of energy security and low-carbon power.

The post U.S. Uranium Mining Returns: UEC Launches First New Mine in a Decade appeared first on Carbon Credits.

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