by Daniel Brouse
June 28, 2025
Climate Change Is System Collapse, Not Just Warming
The narrative of “climate change as gradual warming” is dangerously outdated. We are witnessing the destabilization of the Earth’s core regulatory systems, driving abrupt, non-linear climate acceleration:
1. The Atlantic Meridional Overturning Circulation (AMOC) is weakening at 1–3 Sv per century, disrupting global heat transport, altering weather patterns, and expanding the North Atlantic Warming Hole (NAWH).
2. Jet streams are slowing and becoming wavier due to Arctic amplification, leading to persistent, severe weather events.
3. Wet-bulb temperatures are increasing, pushing regions toward thresholds where human survival without artificial cooling is impossible.
How the Jet Stream Fits In
As our Jet Stream and Atmospheric Rivers analysis details, Arctic amplification reduces the polar-equator temperature gradient, weakening the jet stream. This:
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Stalls weather systems, creating prolonged heatwaves, floods, and droughts.
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Fuels atmospheric rivers, which repeatedly drench the same regions, overwhelming infrastructure and agriculture, as well as increase the frequency of violent rain events.
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Drives heat domes, as seen in the Pacific Northwest and Southern Europe, turning “rare” extremes into annual events.
The weakening AMOC amplifies these effects by:
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Altering North Atlantic sea surface temperatures and pressure systems.
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Influencing storm tracks, Nor’easter behavior, and hurricane paths.
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Further destabilizing the jet stream, creating a feedback loop between ocean and atmospheric breakdown.
The Wet-Bulb Threat: A Direct Human Health Crisis
As our Wet-Bulb Temperature research explains:
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For every 1°C (1.8°F) of warming, the air holds ~7% more moisture, increasing humidity.
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Wet-bulb temperature—when heat and humidity combine to prevent effective sweating—crossing 35°C (95°F) becomes lethal within hours to humans without artificial cooling.
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Cities like Miami are already regularly crossing dangerous thresholds, while India, the Persian Gulf, and parts of the U.S. South surpass these limits with increasing frequency.
Because water vapor is itself a potent greenhouse gas, this creates another feedback loop, trapping more heat and further accelerating warming.
Doubling Periods: Exponential Acceleration
Our findings on the shrinking climate doubling period (from 100 years to as little as 2–5 years) are critical:
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Heatwaves are now 5x more likely, projected to become 10x within 5 years and 20x within a decade.
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This acceleration is driven by non-linear system collapses in the AMOC, jet streams, and hydrological cycles, which traditional models underestimate.
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These shifts are not just theoretical; they are being measured now.
Why This Matters
The convergence of:
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A weakening AMOC
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A wavering jet stream
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Rising lethal wet-bulb temperatures
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Exponential climate acceleration
is driving:
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Mass migration (climate refugees fleeing heat, floods, and drought)
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Food and water insecurity (crops failing under heat stress, floods destroying infrastructure, aquifers depleted)
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Economic instability (insurance collapse, supply chain disruptions, rising disaster recovery costs)
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Health crises (heatstroke, waterborne diseases, mosquito-borne diseases expanding range)
The public, media, and policymakers consistently underestimate these compounding risks, assuming linear changes in a non-linear system.
What We Must Do
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Rapidly decarbonize, particularly by taxing fossil fuels at 100%+ rates rather than productivity or income, aligning incentives with planetary survival.
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A managed retreat from non-climate-resilient infrastructure, especially for cooling, flood defenses, and water conservation.
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Monitor AMOC, jet stream, and wet-bulb thresholds closely for early warnings of catastrophic shifts.
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Communicate clearly that these systems are interconnected, and collapse in one accelerates collapse in others. Most importantly, multiple tipping points have already been crossed, making systemic collapse no longer a distant threat but an inevitable trajectory we are now on.
Final Thought
The AMOC, jet stream, and wet-bulb crises are not distant warnings; they are active drivers of today’s accelerating climate collapse. Understanding their interplay is essential for any serious discussion on climate, economics, or human survival.