Overview
A stranded asset is one that has suffered an unanticipated or premature write-down, devaluation, or conversion to a liability. The “unanticipated” part is critical. Every asset depreciates or loses value eventually. Stranding happens when that loss arrives faster than the market expected, and when the business case for continued operation collapses before the asset’s intended lifespan is up.
Climate change has made stranded assets a defining financial concern of the energy transition. The most discussed examples are fossil fuel reserves, oil fields, coal mines, and gas deposits that, if climate commitments are met, will never be fully extracted. If a company’s valuation includes proven reserves that cannot legally or economically be burned in a net zero world, those reserves are stranded. They show up on balance sheets at values that the climate transition makes fictional.
The concept gained prominence through the work of economist Nicholas Stern and the Carbon Tracker Initiative, which in 2011 popularised the idea of a “carbon bubble”, the risk that fossil fuel assets embedded in financial markets would be repriced sharply as climate policy tightened. Mark Carney later amplified the concern, arguing that financial markets were not pricing this risk adequately.
Causes of Stranding
Stranded assets arise from three overlapping forces that map directly onto the climate risk taxonomy.
Physical risks can strand assets directly, a coastal industrial facility rendered uninsurable and eventually unusable by rising seas; agricultural land made unproductive by chronic drought; infrastructure repeatedly damaged by extreme weather. These are not hypothetical: insurers are already withdrawing from certain geographies, effectively stranding properties that cannot be mortgaged or sold.
Transition risks are the more systemic source. Policy changes, carbon pricing, emissions regulations, product bans, can make operating certain assets uneconomical overnight. Technological shifts can undermine the competitive position of assets that were built for a different energy system. A coal-fired power plant does not need to be physically damaged to be stranded; it just needs electricity prices to fall below its operating costs due to cheap renewable competition.
Market and reputational shifts add a third vector. Consumer preference changes, investor divestment pressure, and lender reluctance to refinance carbon-intensive assets can accelerate stranding even ahead of regulatory action.
Beyond Fossil Fuels
The conversation about stranded assets has broadened significantly. High-carbon industrial facilities, carbon-intensive real estate, inefficient vehicle fleets, and certain agricultural operations all carry stranding risk under ambitious climate scenarios. For communications specialists, this matters: a company’s climate risk disclosure increasingly requires it to explain not just its direct emissions but whether its core business model depends on assets that may be stranded by the transition.
The Scope 3 emissions of fossil fuel companies, the emissions from burning the fuel they sell, are the primary reason their entire proven reserve base faces stranding risk. You cannot separate the asset value from the climate liability embedded in it.