Regional temperature extremes and vulnerability under net zero CO2 emissions

被引:6
作者
Cassidy, Liam J. [1 ,2 ]
King, Andrew D. [1 ,2 ]
Brown, Josephine R. [1 ,2 ]
MacDougall, Andrew H. [3 ]
Ziehn, Tilo [4 ]
Min, Seung-Ki [5 ]
Jones, Chris D. [6 ]
机构
[1] Univ Melbourne, Sch Geog, Melbourne, Vic, Australia
[2] Univ Melbourne, ARC Ctr Excellence Climate Extremes, Melbourne, Vic, Australia
[3] St Francis Xavier Univ, Climate & Environm, Antigonish, NS B2G 2W5, Canada
[4] CSIRO Environm, Aspendale, Vic, Australia
[5] Pohang Univ Sci & Technol, Div Environm Sci & Engn, Pohang, South Korea
[6] Met Off Hadley Ctr, Exeter EX1 3PB, England
来源
ENVIRONMENTAL RESEARCH LETTERS | 2024年 / 19卷 / 01期
关键词
Paris Agreement; climate extremes; ZECMIP; net zero; CLIMATE-CHANGE; COMMITMENT; DESIGN;
D O I
10.1088/1748-9326/ad114a
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
Signatories to the Paris Agreement have pledged to keep global warming to well below 2 degrees C above pre-industrial levels and preferably below 1.5 degrees C above pre-industrial levels. Beyond over-shooting Paris Agreement warming levels followed by net negative emissions, achieving a state of net zero carbon dioxide emissions is required to satisfy Paris Agreement warming goals. Research on climate changes under net zero CO2 emissions is very limited to date with no comprehensive analysis of changes in extremes. In this study, we use results from Earth System Models in the zero emissions commitment model intercomparison project to understand regional mean-state climate change patterns during a 100 year period following carbon dioxide emissions cessation. We also perform an initial study of the evolution of hot and cold monthly temperature extremes after net zero CO2 emissions, including an assessment of how the change in frequency of temperature extremes affects areas of different levels of socioeconomic development based on regional Human Development Index (HDI). The results show that most land regions experience a fast and continuous cooling response following emissions cessation, with large areas of significant model agreement. In contrast, the Southern Ocean continues warming over the century after emissions cessation. The frequency of land-based local monthly high temperature extremes generally stays constant or decreases during the century after emissions cessation, however, decreases in heat extreme frequencies are generally less for locations with lower modern HDI than areas with higher HDI which suggests that inequality of climate change will remain an issue even after net zero CO2 emissions. There is an evident emergence of local monthly cold extremes following emissions cessation with most significant impact over high HDI mid- and high-latitude land regions.
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页数:14
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共 38 条
  • [21] Global and regional impacts differ between transient and equilibrium warmer worlds
    King, Andrew D.
    Lane, Todd P.
    Henley, Benjamin J.
    Brown, Josephine R.
    [J]. NATURE CLIMATE CHANGE, 2020, 10 (01) : 42 - +
  • [22] The Inequality of Climate Change From 1.5 to 2°C of Global Warming
    King, Andrew D.
    Harrington, Luke J.
    [J]. GEOPHYSICAL RESEARCH LETTERS, 2018, 45 (10) : 5030 - 5033
  • [23] Climate model genealogy: Generation CMIP5 and how we got there
    Knutti, Reto
    Masson, David
    Gettelman, Andrew
    [J]. GEOPHYSICAL RESEARCH LETTERS, 2013, 40 (06) : 1194 - 1199
  • [24] Data Descriptor: Gridded global datasets for Gross Domestic Product and Human Development Index over 1990-2015
    Kummu, Matti
    Taka, Maija
    Guillaume, Joseph H. A.
    [J]. SCIENTIFIC DATA, 2018, 5
  • [25] ENSO Teleconnections More Uncertain in Regions of Lower Socioeconomic Development
    Lieber, Ruby
    King, Andrew
    Brown, Josephine
    Ashcroft, Linden
    Freund, Mandy
    McMichael, Celia
    [J]. GEOPHYSICAL RESEARCH LETTERS, 2022, 49 (21)
  • [26] How difficult is it to recover from dangerous levels of global warming?
    Lowe, J. A.
    Huntingford, C.
    Raper, S. C. B.
    Jones, C. D.
    Liddicoat, S. K.
    Gohar, L. K.
    [J]. ENVIRONMENTAL RESEARCH LETTERS, 2009, 4 (01):
  • [27] Substantial regional climate change expected following cessation of CO2 emissions
    MacDougall, Andrew H.
    Mallett, Josie
    Hohn, David
    Mengis, Nadine
    [J]. ENVIRONMENTAL RESEARCH LETTERS, 2022, 17 (11)
  • [28] Is there warming in the pipeline? A multi-model analysis of the Zero Emissions Commitment from CO2
    MacDougall, Andrew H.
    Frolicher, Thomas L.
    Jones, Chris D.
    Rogelj, Joeri
    Matthews, H. Damon
    Zickfeld, Kirsten
    Arora, Vivek K.
    Barrett, Noah J.
    Brovkin, Victor
    Burger, Friedrich A.
    Eby, Michel
    Eliseev, Alexey, V
    Hajima, Tomohiro
    Holden, Philip B.
    Jeltsch-Thommes, Aurich
    Koven, Charles
    Mengis, Nadine
    Menviel, Laurie
    Michou, Martine
    Mokhov, Igor I.
    Oka, Akira
    Schwinger, Jorg
    Seferian, Roland
    Shaffer, Gary
    Sokolov, Andrei
    Tachiiri, Kaoru
    Tjiputra, Jerry
    Wiltshire, Andrew
    Ziehn, Tilo
    [J]. BIOGEOSCIENCES, 2020, 17 (11) : 2987 - 3016
  • [29] Early onset of significant local warming in low latitude countries
    Mahlstein, I.
    Knutti, R.
    Solomon, S.
    Portmann, R. W.
    [J]. ENVIRONMENTAL RESEARCH LETTERS, 2011, 6 (03):
  • [30] Stabilizing climate requires near-zero emissions
    Matthews, H. Damon
    Caldeira, Ken
    [J]. GEOPHYSICAL RESEARCH LETTERS, 2008, 35 (04)