Earth:Tropical cyclones and climate change

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Short description: Impact of climate change on tropical cyclones
North Atlantic tropical cyclone activity according to the Power Dissipation Index, 1949–2015. Sea surface temperature has been plotted alongside the PDI to show how they compare. The lines have been smoothed using a five-year weighted average, plotted at the middle year.

Climate change can affect tropical cyclones in a variety of ways: an intensification of rainfall and wind speed, a decrease in overall frequency, an increase in the frequency of very intense storms and a poleward extension of where the cyclones reach maximum intensity are among the possible consequences of human-induced climate change.[1] Tropical cyclones use warm, moist air as their source of energy or "fuel". As climate change is warming ocean temperatures, there is potentially more of this fuel available.[2]

Between 1979 and 2017, there was a global increase in the proportion of tropical cyclones of Category 3 and higher on the Saffir–Simpson scale. The trend was most clear in the North Atlantic and in the Southern Indian Ocean. In the North Pacific, tropical cyclones have been moving poleward into colder waters and there was no increase in intensity over this period.[3] With 2 °C (3.6 °F) warming, a greater percentage (+13%) of tropical cyclones are expected to reach Category 4 and 5 strength.[1] A 2019 study indicates that climate change has been driving the observed trend of rapid intensification of tropical cyclones in the Atlantic basin. Rapidly intensifying cyclones are hard to forecast and therefore pose additional risk to coastal communities.[4]

Warmer air can hold more water vapor: the theoretical maximum water vapor content is given by the Clausius–Clapeyron relation, which yields ≈7% increase in water vapor in the atmosphere per 1 °C (1.8 °F) warming.[5][6] All models that were assessed in a 2019 review paper show a future increase of rainfall rates.[1] Additional sea level rise will increase storm surge levels.[7][8] It is plausible that extreme wind waves see an increase as a consequence of changes in tropical cyclones, further exacerbating storm surge dangers to coastal communities.[9] The compounding effects from floods, storm surge, and terrestrial flooding (rivers) are projected to increase due to global warming.[8]

There is currently no consensus on how climate change will affect the overall frequency of tropical cyclones.[1] A majority of climate models show a decreased frequency in future projections.[9] For instance, a 2020 paper comparing nine high-resolution climate models found robust decreases in frequency in the Southern Indian Ocean and the Southern Hemisphere more generally, while finding mixed signals for Northern Hemisphere tropical cyclones.[10] Observations have shown little change in the overall frequency of tropical cyclones worldwide,[11] with increased frequency in the North Atlantic and central Pacific, and significant decreases in the southern Indian Ocean and western North Pacific.[12] There has been a poleward expansion of the latitude at which the maximum intensity of tropical cyclones occurs, which may be associated with climate change.[13] In the North Pacific, there may also have been an eastward expansion.[7] Between 1949 and 2016, there was a slowdown in tropical cyclone translation speeds. It is unclear still to what extent this can be attributed to climate change: climate models do not all show this feature.[9]

Background

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 produce heavy rain or squalls. The majority of these systems form each year in one of seven tropical cyclone basins, which are monitored by a variety of meteorological services and warning centres.

The factors that determine tropical cyclone activity are relatively well understood: warmer sea levels are favourable to tropical cyclones, as well as an unstable and moist mid-troposphere, while vertical wind shear suppresses them. All of these factors will change under climate change, but is not always clear which factor dominates.[14]

Tropical cyclones are known as hurricanes in the Atlantic Ocean and the northeastern Pacific Ocean, typhoons in the northwestern Pacific Ocean, and cyclones in the southern Pacific or the Indian Ocean.[15] Fundamentally, they are all the same type of storm.

Data and models

Global ocean heat content in the top 700 m of the ocean.
North Atlantic tropical cyclone activity according to the Accumulated Cyclone Energy Index, 1950–2020. For a global ACE graph visit this link.

Measurement

Based on satellite imagery, the Dvorak technique is the primary technique used to estimate globally the tropical cyclone intensity.[16]

The Potential Intensity (PI) of tropical cyclones can be computed from observed data, primarily derived from vertical profiles of temperature, humidity and sea surface temperatures (SSTs). The convective available potential energy (CAPE), was computed from radiosonde stations in parts of the tropics from 1958 to 1997, but is considered to be of poor quality. The Power Dissipation Index (PDI) represents the total power dissipation for the North Atlantic and western North Pacific, and is strongly correlated with tropical SSTs.[17] Various tropical cyclone scales exist to classify a system.

Historical record

Since the satellite era, which began around 1970, trends are considered to be robust enough in regards to the connection of storms and sea surface temperatures. Agreement exists that there were active storm periods in the more distant past, but the sea surface temperature related Power Dissipation Index was not as high.[17] Paleotempestology is the science of past tropical cyclone activity by means of geological proxies (flood sediment), or historical documentary records, such as shipwrecks or tree ring anomalies. (As of 2019), paleoclimate studies are not yet sufficiently consistent to draw conclusions for wider regions, but they do provide some useful information about specific locations.[18]

Modelling tropical cyclones

Climate models are used to study expected future changes in cyclonic activity. Lower-resolution climate models cannot represent convection directly, and instead use parametrizations to approximate the smaller scale processes. This poses difficulties for tropical cyclones, as convection is an essential part of tropical cyclone physics.

Higher-resolution global models and regional climate models may be more computer-intensive to run, making it difficult to simulate enough tropical cyclones for robust statistical analysis. However, with growing advancements in technology, climate models have improved simulation abilities for tropical cyclone frequency and intensity.[19][20]

One challenge that scientists face when modeling is determining whether the recent changes in tropical cyclones are associated with anthropogenic forcing, or if these changes are still within their natural variability.[21] This is most apparent when examining tropical cyclones at longer temporal resolutions. One study found a decreasing trend in tropical storms along the eastern Australian coast over a century-long historical record.[22]

Changes in tropical cyclones

1970 Bhola cyclone before landfall. It became the deadliest tropical cyclone ever recorded with more than 300,000 casualties.

Climate change may affect tropical cyclones in a variety of ways: an intensification of rainfall and wind speed, a decrease in overall frequency, an increase in frequency of very intense storms and a poleward extension of where the cyclones reach maximum intensity are among the possible consequences of human-induced climate change.[23]

Rainfall

Warmer air can hold more water vapor: the theoretical maximum water vapor content is given by the Clausius–Clapeyron relation, which yields ≈7% increase in water vapor in the atmosphere per 1 °C warming.[5][6] All models that were assessed in a 2019 review paper show a future increase of rainfall rates, which is the rain that falls per hour.[23] The World Meteorological Organization stated in 2017 that the quantity of rainfall from Hurricane Harvey had very likely been increased by climate change.[24][25]

A tropical cyclone's rainfall area (in contrast to rate) is primarily controlled by its environmental sea surface temperature (SST) – relative to the tropical mean SST, called the relative sea surface temperature. Rainfall will expand outwards as the relative SST increases, associated with an expansion of a storm wind field. The largest tropical cyclones are observed in the western North Pacific tropics, where the largest values of relative SST and mid-tropospheric relative humidity are located. Assuming that ocean temperatures rise uniformly, a warming climate is not likely to impact rainfall area.[26]

Intensity

The 20-year average of the number of annual Category 4 and 5 hurricanes in the Atlantic region has approximately doubled since the year 2000.[27]

Tropical cyclones use warm, moist air as their source of energy or "fuel". As climate change is warming ocean temperatures, there is potentially more of this fuel available.[28] A study published in 2012 suggests that SSTs may be valuable as a proxy to measure potential intensity (PI) of tropical cyclones, as cyclones are sensitive to ocean basin temperatures.[29] Between 1979 and 2017, there was a global increase in the proportion of tropical cyclones of Category 3 and higher on the Saffir–Simpson scale, which are cyclones with wind speeds over 178 km per hour. The trend was most clear in the North Atlantic and in the Southern Indian Ocean. In the North Pacific, tropical cyclones have been moving poleward into colder waters and there was no increase in intensity over this period.[30] With 2 °C warming, a greater percentage (+13%) of tropical cyclones are expected to reach Category 4 and 5 strength.[23] A study of 2020's storms of at least tropical storm-strength concluded that human-induced climate change increased extreme 3-hourly storm rainfall rates by 10%, and extreme 3-day accumulated rainfall amounts by 5%, and for hurricane-strength storms the figures increased to 11% and 8%.[31]

Climate change has likely been driving the observed trend of rapid intensification of tropical cyclones in the Atlantic basin, with the proportion of storms undergoing intensification nearly doubling over the years 1982 to 2009.[32][33] Rapidly intensifying cyclones are hard to forecast and pose additional risk to coastal communities.[34] Storms have also begun to decay more slowly once they make landfall, threatening areas further inland than in the past.[35] The 2020 Atlantic hurricane season was exceptionally active and broke numerous records for frequency and intensity of storms.[36]

North Atlantic tropical storms and hurricanes
  Hurricane category 4-5
  Hurricane category 1-3
  Tropical storm or Tropical depression

Frequency

There is no consensus on how climate change will affect the overall frequency of tropical cyclones.[23] A majority of climate models show a decreased frequency in future projections.[18] For instance, a 2020 paper comparing nine high-resolution climate models found robust decreases in frequency in the Southern Indian Ocean and the Southern Hemisphere more generally, while finding mixed signals for Northern Hemisphere tropical cyclones.[37] Observations have shown little change in the overall frequency of tropical cyclones worldwide.[38]

A study published in 2015 concluded that there would be more tropical cyclones in a cooler climate, and that tropical cyclone genesis is possible with sea surface temperatures below 26 °C.[39][40] With warmer sea surface temperatures, especially in the Southern Hemisphere, in tandem with increased levels of carbon dioxide, it is likely tropical cyclone frequency will be reduced in the future.[29][41]

Research conducted by Murakami et al. following the 2015 hurricane season in the eastern and central Pacific Ocean where a record number of tropical cyclones and three simultaneous category 4 hurricanes occurred, concludes that greenhouse gas forcing enhances subtropical Pacific warming which they project will increase the frequency of extremely active tropical cyclones in this area.[42]

Storm tracks

There has been a poleward expansion of the latitude at which the maximum intensity of tropical cyclones occurs, which may be associated with climate change.[13] In the North Pacific, there may also be an eastward expansion.[43] Between 1949 and 2016, there was a slowdown in tropical cyclone translation speeds. It is unclear still to what extent this can be attributed to climate change: climate models do not all show this feature.[18]

Storm surges and flood hazards

Additional sea level rise will increase storm surge levels.[43][44] It is plausible that extreme wind waves see an increase as a consequence of changes in tropical cyclones, further exacerbating storm surge dangers to coastal communities.[18] Between 1923 and 2008, storm surge incidents along the US Atlantic coast showed a positive trend.[45] A 2017 study looked at compounding effects from floods, storm surge, and terrestrial flooding (rivers), and projects an increase due to climate change.[44][46] However, scientists are still uncertain whether recent increases of storm surges are a response to anthropogenic climate change.[47]

Tropical cyclones in different basins

Six tropical cyclones swirl over two basins on September 16, 2020.

Hurricanes

Studies conducted in 2008 and 2016 looked at the duration of the Atlantic hurricane season, and found it may be getting longer, particular south of 30°N and east of 75°W, or the tendency toward more early- and late-season storms, correlated to warming sea surface temperatures. However, uncertainty is still high, and one study found no trend, another mixed results.[48]

A 2011 study linked increased activity of intense hurricanes in the North Atlantic with a northward shift and amplification of convective activities from the African easterly waves (AEWs).[49] In addition to cyclone intensity, both size and translation speed have been shown to be substantial contributors to the impacts resulting from hurricane passage. A 2014 study investigated the response of AEWs to high emissions scenarios, and found increases in regional temperature gradients, convergence and uplift along the Intertropical Front of Africa, resulting in strengthening of the African easterly waves, affecting the climate over West Africa and the larger Atlantic basin.[50]

A 2017 study concluded that the 2015 highly active hurricane season could not be attributed solely to a strong El Niño event. Instead, subtropical warming was an important factor as well, a feature more common as a consequence of climate change.[42] A 2019 study found that increasing evaporation and the larger capability of the atmosphere to hold water vapor linked to climate change, already increased the amount of rainfall from hurricanes Katrina, Irma and Maria by 4 to 9 percent. Future increases of up to 30% were projected.[51]

A 2018 study found no significant trends in landfalling hurricane frequency nor intensity for the continental United States since 1900. Furthermore, growth in coastal populations and regional wealth served as the overwhelming drivers of observed increases in hurricane-related damage.[52]

Typhoons

Research based on records from Japan and Hawaii indicate that typhoons in the north-west Pacific intensified by 12–15% on average since 1977. The observed strongest typhoons doubled, or tripled in some regions, the intensity of particular landfalling systems is most pronounced. This uptick in storm intensity affects coastal populations in China , Japan , Korea and the Philippines , and has been attributed to warming ocean waters. The authors noted that it is not yet clear to what extent global warming caused the increased water temperatures, but observations are consistent with what the IPCC projects for warming of sea surface temperatures.[53] Vertical wind shear has seen decreasing trends in and around China , creating more favourable conditions for intense tropical cyclones. This is mainly in response to the weakening of the East Asian summer monsoon, a consequence of global warming.[54]

Risk management and adaptation

There are several risks associated with the increase of tropical storms, such as it can directly or indirectly cause injuries or death. [55]The most effective strategy to manage risks has been the development of early warning systems.[56] A further policy that would mitigate risks of flooding is reforestation of inland areas in order to strengthen the soil of the communities and reduce coastal inundation.[57] It is also recommended that local schools, churches, and other community infrastructure be permanently equipped to become cyclone shelters.[57] Focusing on applying resources towards immediate relief to those affected may divert attention from more long-term solutions. This is further exacerbated in lower-income communities and countries as they suffer most from the consequences of tropical cyclones.[57]

Pacific region

Specific national and supranational decisions have already been made and are being implemented. The Framework for Resilient Development in the Pacific (FRDP) has been instituted to strengthen and better coordinate disaster response and climate change adaptation among nations and communities in the region. Specific nations such as Tonga and the Cook Islands in the Southern Pacific under this regime have developed a Joint National Action Plan on Climate Change and Disaster Risk Management (JNAP) to coordinate and execute responses to the rising risk for climate change.[57][58] These countries have identified the most vulnerable areas of their nations, generated national and supranational policies to be implemented, and provided specific goals and timelines to achieve these goals.[58] These actions to be implemented include reforestation, building of levees and dams, creation of early warning systems, reinforcing existing communication infrastructure, finding new sources of fresh water, promoting and subsidizing the proliferation renewable energy, improving irrigation techniques to promote sustainable agriculture, increase public education efforts on sustainable measures, and lobbying internationally for the increased use of renewable energy sources.[58]

United States

The number of $1 billion Atlantic hurricanes almost doubled from the 1980s to the 2010s, and inflation-adjusted costs have increased more than elevenfold.[59] The increases have been attributed to climate change and to greater numbers of people moving to coastal areas.[59]

In the United States, there have been several initiatives taken to better prepare for the strengthening of hurricanes, such as preparing local emergency shelters, building sand dunes and levees, and reforestation initiatives.[60] Despite better modeling capabilities of hurricanes, property damage has increased dramatically.[61] The National Flood Insurance Program incentivizes people to re-build houses in flood-prone areas, and thereby hampers adaptation to increased risk from hurricanes and sea level rise.[62] Due to the wind shear and storm surge, a building with a weak building envelope is subject to more damages. Risk assessment using climate models help determine the structural integrity of residential buildings in hurricane-prone areas.[63]

Some ecosystems, such as marshes, mangroves, and coral reefs, can serve as a natural obstacle to coastal erosion, storm surges, and wind damage caused by hurricanes.[64][65] These natural habitats are seen to be more cost-effective as they serve as a carbon sink and support biodiversity of a region.[65][66] Although there is substantial evidence of natural habitats being the more beneficial barrier for tropical cyclones, built defenses are often the primary solution for government agencies and decision makers.[67]  A study published in 2015, which assessed the feasibility of natural, engineered, and hybrid risk-mitigation to tropical cyclones in Freeport, Texas, found that incorporating natural ecosystems into risk-mitigation plans could reduce flood heights and ease the cost of built defenses in the future.[67]

Media and public perception

The destruction from early 21st century Atlantic Ocean hurricanes, such as Hurricanes Katrina, Wilma, and Sandy, caused a substantial upsurge in interest in the subject of climate change and hurricanes by news media and the wider public, and concerns that global climatic change may have played a significant role in those events. In 2005 and 2017, related polling of populations affected by hurricanes concluded in 2005 that 39 percent of Americans believed climate change helped to fuel the intensity of hurricanes, rising to 55 percent in September 2017.[68]

After Typhoon Meranti in 2016, risk perception in China was not measured to increase. However, there was a clear rise in support for personal and community action against climate change.[69] In Taiwan, people that had lived through a typhoon did not express more anxiety about climate change. The survey did find a positive correlation between anxiety about typhoons and anxiety about climate change.[70]

See also

References

  1. 1.0 1.1 1.2 1.3 Knutson, Thomas; Camargo, Suzana J.; Chan, Johnny C. L.; Emanuel, Kerry; Ho, Chang-Hoi; Kossin, James; Mohapatra, Mrutyunjay; Satoh, Masaki et al. (August 6, 2019). "Tropical Cyclones and Climate Change Assessment: Part II. Projected Response to Anthropogenic Warming". Bulletin of the American Meteorological Society 101 (3): BAMS–D–18–0194.1. doi:10.1175/BAMS-D-18-0194.1. Bibcode2020BAMS..101E.303K. 
  2. "Major tropical cyclones have become '15% more likely' over past 40 years" (in en). May 18, 2020. https://www.carbonbrief.org/major-tropical-cyclones-have-become-15-more-likely-over-past-40-years. 
  3. Kossin, James P.; Knapp, Kenneth R.; Olander, Timothy L.; Velden, Christopher S. (May 18, 2020). "Global increase in major tropical cyclone exceedance probability over the past four decades" (in en). Proceedings of the National Academy of Sciences 117 (22): 11975–11980. doi:10.1073/pnas.1920849117. PMID 32424081. Bibcode2020PNAS..11711975K. 
  4. Collins, M.; Sutherland, M.; Bouwer, L.; Cheong, S.-M. et al. (2019). "Chapter 6: Extremes, Abrupt Changes and Managing Risks". IPCC Special Report on the Ocean and Cryosphere in a Changing Climate. pp. 602. https://www.ipcc.ch/site/assets/uploads/sites/3/2019/11/10_SROCC_Ch06_FINAL.pdf. Retrieved October 6, 2020. 
  5. 5.0 5.1 Knutson, Thomas R.; Sirutis, Joseph J.; Zhao, Ming; Tuleya, Robert E.; Bender, Morris; Vecchi, Gabriel A.; Villarini, Gabriele; Chavas, Daniel (15 September 2015). "Global Projections of Intense Tropical Cyclone Activity for the Late Twenty-First Century from Dynamical Downscaling of CMIP5/RCP4.5 Scenarios". Journal of Climate 28 (18): 7203–7224. doi:10.1175/JCLI-D-15-0129.1. Bibcode2015JCli...28.7203K. https://digitalcommons.odu.edu/cgi/viewcontent.cgi?article=1323&context=ccpo_pubs. Retrieved 9 December 2019. 
  6. 6.0 6.1 Knutson, Thomas R.; Sirutis, Joseph J.; Vecchi, Gabriel A.; Garner, Stephen; Zhao, Ming; Kim, Hyeong-Seog; Bender, Morris; Tuleya, Robert E. et al. (1 September 2013). "Dynamical Downscaling Projections of Twenty-First-Century Atlantic Hurricane Activity: CMIP3 and CMIP5 Model-Based Scenarios". Journal of Climate 26 (17): 6591–6617. doi:10.1175/JCLI-D-12-00539.1. Bibcode2013JCli...26.6591K. https://digitalcommons.odu.edu/cgi/viewcontent.cgi?article=1324&context=ccpo_pubs. Retrieved 21 November 2022. 
  7. 7.0 7.1 Collins, M.; Sutherland, M.; Bouwer, L.; Cheong, S.-M. et al. (2019). "Chapter 6: Extremes, Abrupt Changes and Managing Risks". IPCC Special Report on the Ocean and Cryosphere in a Changing Climate. pp. 603. https://www.ipcc.ch/site/assets/uploads/sites/3/2019/11/10_SROCC_Ch06_FINAL.pdf. Retrieved October 6, 2020. 
  8. 8.0 8.1 "Hurricane Harvey shows how we underestimate flooding risks in coastal cities, scientists say". The Washington Post. August 29, 2017. https://www.washingtonpost.com/news/energy-environment/wp/2017/08/29/hurricane-harvey-shows-how-we-underestimate-flooding-risks-in-coastal-cities-scientists-say. 
  9. 9.0 9.1 9.2 Walsh, K. J. E.; Camargo, S. J.; Knutson, T. R.; Kossin, J.; Lee, T. -C.; Murakami, H.; Patricola, C. (December 1, 2019). "Tropical cyclones and climate change" (in en). Tropical Cyclone Research and Review 8 (4): 240–250. doi:10.1016/j.tcrr.2020.01.004. Bibcode2019TCRR....8..240W. 
  10. Roberts, Malcolm John; Camp, Joanne; Seddon, Jon; Vidale, Pier Luigi; Hodges, Kevin; Vannière, Benoît; Mecking, Jenny; Haarsma, Rein et al. (2020). "Projected Future Changes in Tropical Cyclones Using the CMIP6 HighResMIP Multimodel Ensemble" (in en). Geophysical Research Letters 47 (14): e2020GL088662. doi:10.1029/2020GL088662. PMID 32999514. Bibcode2020GeoRL..4788662R. 
  11. "Hurricanes and Climate Change" (in en). https://www.ucsusa.org/global-warming/science-and-impacts/impacts/hurricanes-and-climate-change.html. 
  12. Murakami, Hiroyuki; Delworth, Thomas L.; Cooke, William F.; Zhao, Ming; Xiang, Baoqiang; Hsu, Pang-Chi (2020). "Detected climatic change in global distribution of tropical cyclones". Proceedings of the National Academy of Sciences 117 (20): 10706–10714. doi:10.1073/pnas.1922500117. PMID 32366651. Bibcode2020PNAS..11710706M. 
  13. 13.0 13.1 James P. Kossin; Kerry A. Emanuel; Gabriel A. Vecchi (2014). "The poleward migration of the location of tropical cyclone maximum intensity". Nature 509 (7500): 349–352. doi:10.1038/nature13278. PMID 24828193. Bibcode2014Natur.509..349K. https://dspace.mit.edu/bitstream/handle/1721.1/91576/kerry_4_KEV_manuscript_2014.pdf. 
  14. Patricola, Christina M.; Wehner, Michael F. (November 2018). "Anthropogenic influences on major tropical cyclone events". Nature 563 (7731): 339–346. doi:10.1038/s41586-018-0673-2. PMID 30429550. Bibcode2018Natur.563..339P. https://escholarship.org/content/qt6j00b2h4/qt6j00b2h4.pdf. 
  15. "What is the difference between a hurricane, a cyclone, and a typhoon?". Ocean Facts. National Ocean Service. http://oceanservice.noaa.gov/facts/cyclone.html. 
  16. Colorado State University Tropical Meteorology Project. "Real-Time Global Tropical Cyclone Activity: Data Quality". http://tropical.colostate.edu/real-time-cyclone-activity. 
  17. 17.0 17.1 "3.8.3 Evidence for Changes in Tropical Storms". Climate Change 2007: Working Group I: The Physical Science Basis. IPCC. 2007. https://archive.ipcc.ch/publications_and_data/ar4/wg1/en/ch3s3-8-3.html. 
  18. 18.0 18.1 18.2 18.3 Walsh, K. J. E.; Camargo, S. J.; Knutson, T. R.; Kossin, J.; Lee, T. -C.; Murakami, H.; Patricola, C. (2019-12-01). "Tropical cyclones and climate change". Tropical Cyclone Research and Review 8 (4): 240–250. doi:10.1016/j.tcrr.2020.01.004. Bibcode2019TCRR....8..240W. 
  19. Zhao, Ming; Held, Isaac M.; Lin, Shian-Jiann; Vecchi, Gabriel A. (15 December 2009). "Simulations of Global Hurricane Climatology, Interannual Variability, and Response to Global Warming Using a 50-km Resolution GCM". Journal of Climate 22 (24): 6653–6678. doi:10.1175/2009JCLI3049.1. Bibcode2009JCli...22.6653Z. 
  20. Murakami, Hiroyuki; Wang, Yuqing; Yoshimura, Hiromasa; Mizuta, Ryo; Sugi, Masato; Shindo, Eiki; Adachi, Yukimasa; Yukimoto, Seiji et al. (May 2012). "Future Changes in Tropical Cyclone Activity Projected by the New High-Resolution MRI-AGCM". Journal of Climate 25 (9): 3237–3260. doi:10.1175/JCLI-D-11-00415.1. Bibcode2012JCli...25.3237M. 
  21. Knutson, Thomas R.; McBride, John L.; Chan, Johnny; Emanuel, Kerry; Holland, Greg; Landsea, Chris; Held, Isaac; Kossin, James P. et al. (March 2010). "Tropical cyclones and climate change". Nature Geoscience 3 (3): 157–163. doi:10.1038/ngeo779. Bibcode2010NatGe...3..157K. 
  22. Callaghan, Jeff; Power, Scott B. (August 2011). "Variability and decline in the number of severe tropical cyclones making land-fall over eastern Australia since the late nineteenth century". Climate Dynamics 37 (3–4): 647–662. doi:10.1007/s00382-010-0883-2. Bibcode2011ClDy...37..647C. 
  23. 23.0 23.1 23.2 23.3 Knutson, Thomas; Camargo, Suzana J.; Chan, Johnny C. L.; Emanuel, Kerry; Ho, Chang-Hoi; Kossin, James; Mohapatra, Mrutyunjay; Satoh, Masaki et al. (March 2020). "Tropical Cyclones and Climate Change Assessment: Part II: Projected Response to Anthropogenic Warming". Bulletin of the American Meteorological Society 101 (3): E303–E322. doi:10.1175/BAMS-D-18-0194.1. Bibcode2020BAMS..101E.303K. 
  24. Tom Miles (August 29, 2017). "Storm Harvey's rainfall likely linked to climate change: U.N.". Reuters. Reuters U.K.. https://uk.reuters.com/article/us-storm-harvey-un-idUKKCN1B919O. 
  25. "Global Warming and Atlantic Hurricanes". NOAA. 2017. https://www.gfdl.noaa.gov/global-warming-and-hurricanes/. 
  26. Lin, Yanluan; Zhao, Ming; Zhang, Minghua (May 2015). "Tropical cyclone rainfall area controlled by relative sea surface temperature". Nature Communications 6 (1): 6591. doi:10.1038/ncomms7591. PMID 25761457. Bibcode2015NatCo...6.6591L. 
  27. Leonhardt, David; Moses, Claire; Philbrick, Ian Prasad (29 September 2022). "Ian Moves North / Category 4 and 5 Atlantic hurricanes since 1980". The New York Times. https://www.nytimes.com/2022/09/29/briefing/hurricane-ian-storm-climate-change.html. "Source: NOAA - Graphic by Ashley Wu, The New York Times"  (cites for 2022— data)
  28. Dunne, Daisy (2020-05-18). "Major tropical cyclones have become '15% more likely' over past 40 years" (in en). https://www.carbonbrief.org/major-tropical-cyclones-have-become-15-more-likely-over-past-40-years. 
  29. 29.0 29.1 Sugi, Masato; Murakami, Hiroyuki; Yoshimura, Jun (2012). "On the Mechanism of Tropical Cyclone Frequency Changes Due to Global Warming". Journal of the Meteorological Society of Japan. Series II 90A: 397–408. doi:10.2151/jmsj.2012-a24. Bibcode2012JMeSJ..90A.397S. 
  30. Kossin, James P.; Knapp, Kenneth R.; Olander, Timothy L.; Velden, Christopher S. (2 June 2020). "Global increase in major tropical cyclone exceedance probability over the past four decades". Proceedings of the National Academy of Sciences 117 (22): 11975–11980. doi:10.1073/pnas.1920849117. PMID 32424081. Bibcode2020PNAS..11711975K. 
  31. Reed, Kevin A.; Wehner, Michael F.; Zarzycki, Colin M. (12 April 2022). "Attribution of 2020 hurricane season extreme rainfall to human-induced climate change". Nature Communications 13 (1905): 1905. doi:10.1038/s41467-022-29379-1. PMID 35414063. Bibcode2022NatCo..13.1905R. 
  32. Bhatia, Kieran T.; Vecchi, Gabriel A.; Knutson, Thomas R.; Murakami, Hiroyuki; Kossin, James; Dixon, Keith W.; Whitlock, Carolyn E. (December 2019). "Recent increases in tropical cyclone intensification rates". Nature Communications 10 (1): 635. doi:10.1038/s41467-019-08471-z. PMID 30733439. Bibcode2019NatCo..10..635B. 
  33. "Hurricane Delta's Rapid Intensification Is Fueled by Climate Change". Ecowatch. Climate Nexus. 9 October 2020. https://www.ecowatch.com/hurricane-delta-2020-2648150767.html. 
  34. Collins, M.; Sutherland, M.; Bouwer, L.; Cheong, S.-M. et al. (2019). "Chapter 6: Extremes, Abrupt Changes and Managing Risks". IPCC Special Report on the Ocean and Cryosphere in a Changing Climate. pp. 602. https://www.ipcc.ch/site/assets/uploads/sites/3/2019/11/10_SROCC_Ch06_FINAL.pdf. Retrieved 2020-08-31. 
  35. Li, Lin; Chakraborty, Pinaki (12 November 2020). "Slower decay of landfalling hurricanes in a warming world". Nature 587 (7833): 230–234. doi:10.1038/s41586-020-2867-7. PMID 33177666. Bibcode2020Natur.587..230L. https://oist.repo.nii.ac.jp/?action=repository_uri&item_id=1851. Retrieved 21 November 2022. 
  36. Milman, Oliver (10 November 2020). "Devastating 2020 Atlantic hurricane season breaks all records". The Guardian. https://www.theguardian.com/world/2020/nov/10/devastating-2020-atlantic-hurricane-season-breaks-all-records. 
  37. Roberts, Malcolm John; Camp, Joanne; Seddon, Jon; Vidale, Pier Luigi; Hodges, Kevin; Vannière, Benoît; Mecking, Jenny; Haarsma, Rein et al. (28 July 2020). "Projected Future Changes in Tropical Cyclones Using the CMIP6 HighResMIP Multimodel Ensemble". Geophysical Research Letters 47 (14): e2020GL088662. doi:10.1029/2020GL088662. PMID 32999514. Bibcode2020GeoRL..4788662R. 
  38. "Hurricanes and Climate Change" (in en). https://www.ucsusa.org/global-warming/science-and-impacts/impacts/hurricanes-and-climate-change.html. 
  39. Sugi, Masato; Yoshida, Kohei; Murakami, Hiroyuki (28 August 2015). "More tropical cyclones in a cooler climate?". Geophysical Research Letters 42 (16): 6780–6784. doi:10.1002/2015GL064929. Bibcode2015GeoRL..42.6780S. 
  40. Stanley, Sarah (2015-10-22). "A Cooler Climate Would Trigger More Tropical Cyclones" (in en-US). https://eos.org/research-spotlights/a-cooler-climate-would-trigger-more-tropical-cyclones. 
  41. Held, Isaac M.; Zhao, Ming (2011-10-15). "The Response of Tropical Cyclone Statistics to an Increase in CO2 with Fixed Sea Surface Temperatures". Journal of Climate 24 (20): 5353–5364. doi:10.1175/JCLI-D-11-00050.1. Bibcode2011JCli...24.5353H. 
  42. 42.0 42.1 Murakami, Hiroyuki; Vecchi, Gabriel A.; Delworth, Thomas L.; Wittenberg, Andrew T.; Underwood, Seth; Gudgel, Richard; Yang, Xiaosong; Jia, Liwei et al. (January 2017). "Dominant Role of Subtropical Pacific Warming in Extreme Eastern Pacific Hurricane Seasons: 2015 and the Future". Journal of Climate 30 (1): 243–264. doi:10.1175/JCLI-D-16-0424.1. Bibcode2017JCli...30..243M. 
  43. 43.0 43.1 Collins, M.; Sutherland, M.; Bouwer, L.; Cheong, S.-M. et al. (2019). "Chapter 6: Extremes, Abrupt Changes and Managing Risks". IPCC Special Report on the Ocean and the Cryosphere in a Changing Climate, 2019. pp. 603. https://www.ipcc.ch/site/assets/uploads/sites/3/2019/11/10_SROCC_Ch06_FINAL.pdf. Retrieved 2020-08-31. 
  44. 44.0 44.1 "Hurricane Harvey shows how we underestimate flooding risks in coastal cities, scientists say". The Washington Post. August 29, 2017. https://www.washingtonpost.com/news/energy-environment/wp/2017/08/29/hurricane-harvey-shows-how-we-underestimate-flooding-risks-in-coastal-cities-scientists-say. 
  45. Grinsted, Aslak; Moore, John C.; Jevrejeva, Svetlana (27 November 2012). "Homogeneous record of Atlantic hurricane surge threat since 1923". Proceedings of the National Academy of Sciences 109 (48): 19601–19605. doi:10.1073/pnas.1209542109. PMID 23071336. 
  46. Matthew, Richard A.; Sanders, Brett F.; Aghakouchak, Amir; Salvadori, Gianfausto; Moftakhari, Hamed R. (2017). "Compounding effects of sea level rise and fluvial flooding". Proceedings of the National Academy of Sciences 114 (37): 9785–9790. doi:10.1073/pnas.1620325114. PMID 28847932. Bibcode2017PNAS..114.9785M. 
  47. Knutson, Thomas; Camargo, Suzana J.; Chan, Johnny C. L.; Emanuel, Kerry; Ho, Chang-Hoi; Kossin, James; Mohapatra, Mrutyunjay; Satoh, Masaki et al. (October 2019). "Tropical Cyclones and Climate Change Assessment: Part I: Detection and Attribution". Bulletin of the American Meteorological Society 100 (10): 1987–2007. doi:10.1175/BAMS-D-18-0189.1. Bibcode2019BAMS..100.1987K. 
  48. Jeff Masters (November 1, 2017). "November Atlantic Hurricane Outlook: The Season is Not Over Yet". Wunderground. https://www.wunderground.com/cat6/november-atlantic-hurricane-outlook-season-not-over-yet. 
  49. Wang; Gillies (2011). "Observed Change in Sahel Rainfall, Circulations, African Easterly Waves, and Atlantic Hurricanes Since 1979". International Journal of Geophysics 2011: 1–14. doi:10.1155/2011/259529. 
  50. Christopher Bryan Skinner; Noah S. Diffenbaugh (2014). "Projected changes in African easterly wave intensity and track in response to greenhouse forcing". Proceedings of the National Academy of Sciences of the United States of America 111 (19): 6882–6887. doi:10.1073/pnas.1319597111. PMID 24778244. Bibcode2014PNAS..111.6882S. 
  51. Davidson, Jordan (July 12, 2019). "Study: Climate Change Linked to More Rain in Hurricanes". Ecowatch. https://www.ecowatch.com/climate-crisis-hurricanes-wetter-2639175731.html. 
  52. Klotzbach, Philip J.; Bowen, Steven G.; Pielke, Roger; Bell, Michael (July 2018). "Continental U.S. Hurricane Landfall Frequency and Associated Damage: Observations and Future Risks". Bulletin of the American Meteorological Society 99 (7): 1359–1376. doi:10.1175/BAMS-D-17-0184.1. Bibcode2018BAMS...99.1359K. 
  53. "Asian typhoons becoming more intense, study finds". The Guardian. 2016. https://www.theguardian.com/environment/2016/sep/05/asian-typhoons-becoming-more-intense-study-finds. 
  54. Liu, Lu; Wang, Yuqing; Zhan, Ruifen; Xu, Jing; Duan, Yihong (1 May 2020). "Increasing Destructive Potential of Landfalling Tropical Cyclones over China". Journal of Climate 33 (9): 3731–3743. doi:10.1175/JCLI-D-19-0451.1. Bibcode2020JCli...33.3731L. 
  55. Anderson, G Brooke; Schumacher, Andrea; Done, James M.; Hurrell, James W. (2022). "Projecting the Impacts of a Changing Climate: Tropical Cyclones and Flooding". Current Environmental Health Reports 9 (4): 244–262. doi:10.1007/s40572-022-00340-0. PMID 35403997. https://pubmed.ncbi.nlm.nih.gov/35403997/. Retrieved April 27, 2023. 
  56. Collins, M.; Sutherland, M.; Bouwer, L.; Cheong, S.-M. et al. (2019). "Chapter 6: Extremes, Abrupt Changes and Managing Risks". IPCC SROCC. pp. 606. https://www.ipcc.ch/site/assets/uploads/sites/3/2019/11/10_SROCC_Ch06_FINAL.pdf. Retrieved 2020-08-31. 
  57. 57.0 57.1 57.2 57.3 Thomas, Adelle; Pringle, Patrick; Pfleiderer, Peter; Schleussner, Car-Friedrich (April 14, 2017). "Topical Cyclones: Impacts, the link to Climate Change and Adaptation". IMPACT. http://climateanalytics.org/files/tropical_cyclones_impacts_cc_adaptation.pdf. Retrieved April 21, 2018. 
  58. 58.0 58.1 58.2 "Prevention Web". https://www.preventionweb.net/english/professional/policies/v.php?id=18242. 
  59. 59.0 59.1 Philbrick, Ian Pasad; Wu, Ashley (2 December 2022). "Population Growth Is Making Hurricanes More Expensive". The New York Times. https://www.nytimes.com/2022/12/02/briefing/why-hurricanes-cost-more.html.  Newspaper states data source: NOAA.
  60. Moser, Susan (2005). "Impact assessments and policy responses to sea-level rise in three US states: An exploration of human-dimension uncertainties". Global Environmental Change 15 (4): 353–369. doi:10.1016/j.gloenvcha.2005.08.002. 
  61. Sadowski, Nicole Cornell; Sutter, Daniel (January 2008). "Mitigation motivated by past experience: Prior hurricanes and damages". Ocean & Coastal Management 51 (4): 303–313. doi:10.1016/j.ocecoaman.2007.09.003. Bibcode2008OCM....51..303S. 
  62. Craig, Robin Kundis (January 2019). "Coastal adaptation, government-subsidized insurance, and perverse incentives to stay". Climatic Change 152 (2): 215–226. doi:10.1007/s10584-018-2203-5. Bibcode2019ClCh..152..215C. 
  63. Li, Yue; Ellingwood, Bruce R. (June 2006). "Hurricane damage to residential construction in the US: Importance of uncertainty modeling in risk assessment". Engineering Structures 28 (7): 1009–1018. doi:10.1016/j.engstruct.2005.11.005. Bibcode2006EngSt..28.1009L. 
  64. Shepard, Christine C.; Crain, Caitlin M.; Beck, Michael W. (23 November 2011). "The Protective Role of Coastal Marshes: A Systematic Review and Meta-analysis". PLOS ONE 6 (11): e27374. doi:10.1371/journal.pone.0027374. PMID 22132099. Bibcode2011PLoSO...627374S. 
  65. 65.0 65.1 Ferrario, Filippo; Beck, Michael W.; Storlazzi, Curt D.; Micheli, Fiorenza; Shepard, Christine C.; Airoldi, Laura (September 2014). "The effectiveness of coral reefs for coastal hazard risk reduction and adaptation". Nature Communications 5 (1): 3794. doi:10.1038/ncomms4794. PMID 24825660. Bibcode2014NatCo...5.3794F. 
  66. Barbier, Edward B.; Hacker, Sally D.; Kennedy, Chris; Koch, Evamaria W.; Stier, Adrian C.; Silliman, Brian R. (May 2011). "The value of estuarine and coastal ecosystem services". Ecological Monographs 81 (2): 169–193. doi:10.1890/10-1510.1. Bibcode2011EcoM...81..169B. https://figshare.com/articles/journal_contribution/13678900. Retrieved 2023-06-20. 
  67. 67.0 67.1 Reddy, Sheila MW; Guannel, Gregory; Griffin, Robert; Faries, Joe; Boucher, Timothy; Thompson, Michael; Brenner, Jorge; Bernhardt, Joey et al. (April 2016). "Evaluating the role of coastal habitats and sea-level rise in hurricane risk mitigation: An ecological economic assessment method and application to a business decision". Integrated Environmental Assessment and Management 12 (2): 328–344. doi:10.1002/ieam.1678. PMID 26123999. Bibcode2016IEAM...12..328R. 
  68. "Majority of Americans now say climate change makes hurricanes more intense". The Washington Post. 2017. https://www.washingtonpost.com/news/energy-environment/wp/2017/09/28/majority-of-americans-now-say-climate-change-makes-hurricanes-more-intense. 
  69. Wu, Wenhao; Zheng, Junjie; Fang, Qinhua (July 2020). "How a typhoon event transforms public risk perception of climate change: A study in China". Journal of Cleaner Production 261: 121163. doi:10.1016/j.jclepro.2020.121163. 
  70. Sun, Yingying; Han, Ziqiang (2018). "Climate Change Risk Perception in Taiwan: Correlation with Individual and Societal Factors" (in en). International Journal of Environmental Research and Public Health 15 (1): 91. doi:10.3390/ijerph15010091. PMID 29316685. 

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