How the world's biggest bank is bracing for climate catastrophe

How the world’s biggest bank is bracing for climate catastrophe

Source: How the world’s biggest bank is bracing for climate catastrophe., Just Have a Think, 16:49, uploaded 2025-07-06, Watch Later position 429.

Just Have a Think compares two ways of putting a price on a warming world. The Institute and Faculty of Actuaries (IFoA) treats climate change as a risk that could overwhelm the systems meant to absorb it. J.P. Morgan Chase accepts the physical trend and prepares its clients for the costs and opportunities that follow. Both reports describe a dangerous future. Their disagreement concerns the level of risk that financial institutions should plan for and the action that follows from it.

The actuarial view of climate risk

Actuaries manage financial risk for banks, insurers, and large companies. Their work involves tracing global, economic, political, social, and environmental changes far enough into the future to see which could threaten an organisation’s solvency. The video had previously covered two IFoA papers from late 2023 and early 2024. In January 2025, the organisation published a third report that brought those findings together and set out urgent actions for policymakers.

The British origin of the IFoA could make its warnings seem distant to a company elsewhere. J.P. Morgan Chase removes that excuse. The American bank is described as the world’s largest by Forbes, with CEO Jamie Dimon saying that it trades $3 trillion of US bonds and moves$ 10 trillion in money each day. Since 2021, the bank has invested almost $200 billion in fossil fuels. Its record gives the report’s climate warning an awkward source: the bank has a direct interest in the industries that benefit from continued warming.

In October 2024, J.P. Morgan hired Sarah Kapnick, the former chief scientist of the US National Oceanic and Atmospheric Administration, as its global head of climate advisory. The bank’s report, Introduction to Climate Intuition, draws heavily on her work. It accepts that population growth, fossil-fuel production, and agricultural productivity have risen over the last century, alongside greenhouse-gas concentrations. The report also treats annual global temperature as a simple measure of the change. Observed temperatures stayed within a relatively stable historical range for a long time, then moved outside it during the last one or two decades.

The video gives the recent figures as 1.46°C above pre-industrial levels for the 2023 annual average and 1.54°C for 2024. It says the UK Met Office still expected the world to exceed the Paris Agreement’s 1.5°C threshold in most of the coming five years, even after a small slowdown in the rate of change in 2025. Atmospheric carbon dioxide reached 430 parts per million in April 2025, a concentration the video places around three million years ago in the Pliocene, when humans were absent.

Two ways to draw a risk curve

The J.P. Morgan report uses a graphic that shows the probability of heat waves shifting as temperatures rise. The IFoA’s Climate Scorpion report makes a similar point with severe flooding. Events that looked vanishingly unlikely in 1980 now sit near the middle of the probability curve for 2030. Their consequences also reach far beyond the losses attached to an ordinary bad year.

The J.P. Morgan chart says that emissions are still following pathways above 2°C. It treats the 1.5°C milestone as reached and projects a straight-line trend from 1950 that moves above 1.5°C in the 2040s. The video objects to the straight line. The IFoA chart extends its range to 10°C in the most pessimistic scenario, and the presenter uses a 5°C rise to give the scale some historical meaning: roughly that change moved the planet out of the last ice age and into the relatively stable Holocene climate in which human civilisation developed.

The video then includes a clip of climate scientist Johan Rockström describing the last 10,000 years as a period in which global temperature stayed close to 14°C plus or minus half a degree. He calls that narrow range the corridor of life. Looking back three million years, he says, the planet stayed below 2°C above the present reference level during the Quaternary. The passage locates human development within a narrow climate range and leaves any one future temperature open.

Current stated policies are projected to produce around 2.7°C of warming over the next 70 years. The video accepts that as the most statistically probable outcome in the IFoA chart, then asks what risk managers do with the rest of the distribution. The latest IPCC estimates cited in the video give an 18% chance of equilibrium climate sensitivity above 4.5°C. That figure describes the warming response to a doubling of greenhouse gases, rather than a forecast for a particular year. It shows why a risk manager who prepares only for the average outcome may leave a large exposure outside the plan.

Adaptation and the market for warming

J.P. Morgan’s report presents climate change as a variable but predictable cost. Its proposed series would examine insurance markets, adaptive action, and energy independence. The closing paragraph also points towards economic opportunities created by the new climate: a warmer world may increase demand for air conditioning, while melting sea ice and thawing permafrost could open routes and mining sites in the Arctic.

That logic appears elsewhere in the financial sector. The video cites a Morgan Stanley report that models a 3°C world when discussing air-conditioning stocks. It estimates that warming could raise the cooling market’s annual growth from 3% to 7%. The video also points to banks withdrawing from the Net-Zero Banking Alliance, which was created at COP26 in Glasgow in 2021, whilst pursuing new oil and gas investments. Jamie Dimon is shown describing electric vehicles and other green spending as wasteful at the Reagan National Economic Forum.

The IFoA reads the same evidence through a longer risk horizon. Financial institutions often model climate damages as separate events inside an economy that keeps growing. A flood, a drought, a failed harvest, or a migration crisis enters the calculation as a discrete loss. The IFoA argues that climate shocks can cascade and compound, so the resulting damage can exceed the sum of the individual events. A model can therefore produce economic growth in a hot-house world because it has left out the conditions that make continued growth impossible.

The cost of ignoring the tail

The video cites an IFoA comparison between old and updated estimates of global GDP loss. The older projection put the loss at 5% by 2050. Updated numbers that incorporate real-world extreme weather raise it to 15%. The later data set says that the cost of limiting warming to 2°C is already lower than the damage that warming would cause, which gives mitigation an economic case alongside its human and ecological one.

The uncertainty range reaches 25% GDP loss by the middle of the century in the video’s worst case, with at least half of the global economy lost by 2100. The presenter calls that the end of civilisation as we know it. The figure is the video’s interpretation of an IFoA scenario range, and it remains a scenario rather than a settled forecast. The IFoA also criticises policymakers who still use a 2000 book by two university professors that estimated only a 2% GDP loss by 2100 at 3°C. The newer report’s warning is that such an old model can make decision-makers accept risks they have left unnamed.

The difference between the two reports therefore reaches into policy. J.P. Morgan’s language centres on accepting the direction of travel, adapting to its effects, and finding the profitable sectors that grow around them. The IFoA asks financial institutions to model the point at which climate damage undermines the economic system itself. It keeps the economy in view whilst adding society, the biosphere, Earth-system tipping points, and the interactions between them.

Planetary solvency and the RESILIENCE framework

The IFoA’s proposed answer is a risk-led approach that uses the latest science, includes nonlinear effects, and brings different disciplines into the same governance process. The video says that the report compresses these requirements into the acronym RESILIENCE. The narration leaves each letter unexplained. The linked Planetary Solvency report names the principles as follows:

Risk-led methodology.
Earth system primacy.
Systemic risk assessment.
Imaginative scenarios.
Latest science.
Incentives to flag risk.
Educate stakeholders.
Nonlinear risks and tipping points.
Collaborative across disciplines.
Effective governance and reporting.

The conclusion is plain. Preparing for the most likely outcome can leave institutions exposed to lower-probability outcomes that are far more destructive. A bank can plan for a 2.7°C path and still need to understand what happens when tipping points, extreme events, and social disruption interact. Just Have a Think ends with a choice between acting while there is still room to reduce the risk and waiting for the climate system to impose the terms.

Limits and references

The figures in this note remain attached to the video unless a reference below gives a separate basis for them. The video’s narration sometimes moves between J.P. Morgan’s report, IFoA reports, the IPCC, the UK Met Office, and quoted scientists without giving a full method for each number. Its reference list is useful evidence of the intended source trail, though two linked documents have moved since publication: the IFoA URLs now resolve through current download pages, and the 2025 Banking on Climate Chaos PDF returned a 404 from the original link during checking.