Author’s Note
What do we think?
I am an economist whose work has focused on climate risk management, complex systems, and nonlinear acceleration. My research partner, Sidd Mukherjee, is a physicist. While my background centers on economics, risk, and system dynamics, Sidd’s work extends into areas such as ultra-low-temperature physics, where measurements can approach within a millikelvin of absolute zero.
Together, we developed:
- The Human-Induced Climate Change Experiment
- Research and Development Incorporating Complex Social-Ecological Feedback Loops Within a Dynamic, Nonlinear System
- The Nonlinear Acceleration Framework: Collapsing Doubling Times in Climate Change Impacts
Although we approach the problem from different disciplines, we arrive at remarkably similar conclusions.
I believe several interconnected subsystems are already exhibiting signs of systemic collapse. Economically, the insurance industry may be the clearest example to watch in real time. Insurance functions as society’s risk-distribution mechanism. When insurers begin withdrawing coverage, dramatically raising premiums, or abandoning entire regions, it signals that climate risk is no longer theoretical—it is being priced into the real economy. In some locations, that process is already well underway.
Sidd’s primary concern is ecological. He believes one of the most consequential tipping points to watch is the potential large-scale destabilization of the Amazon rainforest. The Amazon is not merely a forest; it is a planetary-scale climate regulator, carbon reservoir, hydrological engine, and biodiversity hotspot. Significant degradation could trigger cascading effects far beyond South America.
Where we strongly agree is that these processes are not future possibilities waiting to begin. They are already occurring.
Our framework has been tested against a wide range of climate, economic, and social indicators. One of its most successful applications—both scientifically and economically—has been the intersection of climate change and real estate. Over time, our research increasingly focused on how climate instability propagates through insurance systems, mortgage markets, infrastructure investment, migration patterns, and broader financial feedback loops.
What makes the present moment especially concerning is not simply the magnitude of warming, but the apparent acceleration occurring across multiple interconnected systems simultaneously.
Our nonlinear acceleration framework describes a world in which impacts compound through feedback loops, cascading tipping behavior, and increasingly compressed timescales. Whether one accepts our specific scaling estimates or not, the broader observation remains difficult to ignore: many climate indicators are no longer changing in a linear fashion.
Sea-level rise, extreme precipitation, wildfire activity, ice-sheet instability, ocean heat content, ecological disruption, insurance losses, and climate-related economic impacts increasingly exhibit characteristics associated with nonlinear systems.
This is the central issue.
The question is no longer whether climate change is occurring. The question is how rapidly coupled climate, ecological, economic, and social systems will respond as feedbacks continue to interact and amplify one another.
That is the aspect of today’s climate experiment that may prove geologically unprecedented.