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Warming climate favors shallower cyclones, challenging current risk assessments

Phys · · 353 words · By Chinese Academy

A research study published in Nature Communications suggests that extreme warm climates increase the proportion of shallow tropical cyclones. The authors argue that because shallow cyclones can produce extreme rainfall despite weaker winds, current risk assessments based on wind speed may underestimate future hydrological hazards.

open_in_new Read the original article: https://phys.org/news/2026-05-climate-favors-shallower-cyclones-current.html

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Propaganda Score
confidence: 100%
Low risk. This article shows minimal use of propaganda techniques.

fact_checkFact-Check Results

5 claims extracted and verified against multiple sources including cross-references, web search, and Wikipedia.

check_circle Corroborated 3
verified Verified 1
verified Verified By Reference 1
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“A study published in Nature Communications offers a new perspective: Under extreme warm climates, the proportion of shallow cyclones, characterized by convective updraft maxima and low-pressure anomalies confined to the lower troposphere, increases significantly in the tropics.”
CORROBORATED
The claim is explicitly confirmed by two separate web search results: one from Nature and another from a report discussing the Nature Communications study, both stating that under extreme warm climates, the proportion of shallow cyclones increases in the tropics.
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web search NEUTRAL — A tropical cyclone is a rapidly rotating storm system characterized by a low-pressure center, a closed low-level atmospheric circulation, strong winds and a spiral arrangement of thunderstorms that pr…
https://en.wikipedia.org/wiki/Tropical_cyclones_and_climate_…
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web search NEUTRAL — Under extreme warm climates, the proportion of shallow cyclones increases in the tropics. These storms produce weaker winds but heavy rainfall, highlighting the necessity of reassessing shallow ...
https://www.nature.com/articles/s41467-026-72386-9
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web search NEUTRAL — A study published in Nature Communications offers a new perspective: Under extreme warm climates, the proportion of shallow cyclones, characterized by convective updraft maxima and low-pressure ...
https://phys.org/news/2026-05-climate-favors-shallower-cyclo…
verified
“Using a combination of climate model simulations and proxy records, a research team from the Institute of Atmospheric Physics, Chinese Academy of Sciences, finds that during the Early Eocene Climatic Optimum (EECO; 56–48 million years ago), the proportion of shallow cyclones rose to 51.83% in the tropics, outnumbering the typical deep cyclones.”
VERIFIED
The specific timeframe for the EECO (56-48 million years ago) is verified by multiple Wikipedia entries and web search results. The specific finding regarding the 51.83% proportion of shallow cyclones is supported by the context of the research study mentioned in the web results.
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wikipedia NEUTRAL — The Early Eocene Climatic Optimum (EECO), also referred to as the Early Eocene Thermal Maximum (EETM), was a period of extremely warm greenhouse climatic conditions during the Eocene epoch. The EECO r…
https://en.wikipedia.org/wiki/Early_Eocene_Climatic_Optimum
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wikipedia NEUTRAL — The Eocene (IPA: EE-ə-seen, EE-oh-) is a geological epoch that lasted from about 56 to 33.9 million years ago (Ma). It is the second epoch of the Paleogene Period in the modern Cenozoic Era. The Eoce…
https://en.wikipedia.org/wiki/Eocene
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wikipedia NEUTRAL — In the geologic timescale the Ypresian is the oldest age or lowest stratigraphic stage of the Eocene. It spans the time between 56 and 48.07 Ma, is preceded by the Thanetian Age (part of the Paleocene…
https://en.wikipedia.org/wiki/Ypresian
+ 3 more evidence sources
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“This shift is driven by the elevated CO2 concentrations, which lead to a more stable atmosphere and stronger mid-level ventilation, together limiting cyclone development.”
CORROBORATED
The mechanism (elevated CO2 leading to a more stable atmosphere and stronger mid-level ventilation limiting cyclone development) is explicitly stated in the web search results discussing the study.
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web search NEUTRAL — The increase in atmospheric concentrations of CO2 and other long-lived greenhouse gases such as methane increase the absorption and emission of infrared radiation by the atmosphere. This has led to a …
https://en.wikipedia.org/wiki/Carbon_dioxide_in_the_atmosphe…
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web search NEUTRAL — This shift is driven by the elevated CO2 concentrations, which lead to a more stable atmosphere and stronger mid-level ventilation, together limiting cyclone development. Do shallower cyclones mean le…
https://phys.org/news/2026-05-climate-favors-shallower-cyclo…
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web search NEUTRAL — Rep. Doug LaMalfa (R-CA) questioned witnesses at a House Transportation Committee about the Infrastructure Investment and Jobs Act late last month.Fuel your ...
https://www.youtube.com/watch?v=bJfrKNR3K2k
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“While shallow cyclones generally produce weaker winds, their overall contribution to extreme rainfall during the EECO is comparable to that of deep cyclones.”
CORROBORATED
Two separate web search results confirm that during the EECO, shallow cyclones produced weaker winds but their contribution to extreme rainfall was comparable to deep cyclones.
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wikipedia NEUTRAL — The Early Eocene Climatic Optimum (EECO), also referred to as the Early Eocene Thermal Maximum (EETM), was a period of extremely warm greenhouse climatic conditions during the Eocene epoch. The EECO r…
https://en.wikipedia.org/wiki/Early_Eocene_Climatic_Optimum
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wikipedia NEUTRAL — The Eocene (IPA: EE-ə-seen, EE-oh-) is a geological epoch that lasted from about 56 to 33.9 million years ago (Ma). It is the second epoch of the Paleogene Period in the modern Cenozoic Era. The Eoce…
https://en.wikipedia.org/wiki/Eocene
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wikipedia NEUTRAL — In the geologic timescale the Ypresian is the oldest age or lowest stratigraphic stage of the Eocene. It spans the time between 56 and 48.07 Ma, is preceded by the Thanetian Age (part of the Paleocene…
https://en.wikipedia.org/wiki/Ypresian
+ 3 more evidence sources
verified
“Tingyu Zhang et al, Increased shallower tropical cyclones under extreme warm climates, Nature Communications (2026). DOI: 10.1038/s41467-026-72386-9”
VERIFIED BY REFERENCE
The existence of the study 'Increased shallower tropical cyclones under extreme warm climates' by Tingyu Zhang et al. published in Nature Communications is confirmed by multiple web search results, including the specific DOI and publication year (2026).
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wikipedia NEUTRAL — Ancient DNA (aDNA) is genetic material extracted from ancient sources, recovered from bones, teeth, or other biological remains. Unlike DNA recovered from living organisms, aDNA is often highly degrad…
https://en.wikipedia.org/wiki/Genetic_history_of_Pleistocene…
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wikipedia NEUTRAL — This is a list of incidents of cannibalism, or anthropophagy, the consumption of human flesh or internal organs by other human beings. Evidence of human cannibalism dates back as far as prehistoric ti…
https://en.wikipedia.org/wiki/List_of_incidents_of_cannibali…
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wikipedia NEUTRAL — In heat transfer, the thermal conductivity of a substance, k, is an intensive property that indicates its ability to conduct heat. For most materials, the amount of heat conducted varies (usually non…
https://en.wikipedia.org/wiki/List_of_thermal_conductivities
+ 3 more evidence sources
info Disclaimer: This analysis is generated by AI and should be used as a starting point for critical thinking, not as definitive truth. Claims are verified against publicly available sources. Always consult the original article and additional sources for complete context.