---
OA_type: closed access
_id: '22562'
abstract:
- lang: eng
  text: Persistent multiyear drought (MYD) events pose a growing threat to nature
    and humans in a changing climate. We identified and inventoried global MYDs by
    detecting spatiotemporally contiguous climatic anomalies, showing that MYDs have
    become drier, hotter, and led to increasingly diminished vegetation greenness.
    The global terrestrial land affected by MYDs has increased at a rate of 49,279
    ± 14,771 square kilometers per year from 1980 to 2018. Temperate grasslands have
    exhibited the greatest declines in vegetation greenness during MYDs, whereas boreal
    and tropical forests have had comparably minor responses. With MYDs becoming more
    common, this global quantitative inventory of the occurrence, severity, trend,
    and impact of MYDs provides an important benchmark for facilitating more effective
    and collaborative preparedness toward mitigation of and adaptation to such extreme
    events.
article_processing_charge: No
article_type: original
author:
- first_name: Liangzhi
  full_name: Chen, Liangzhi
  last_name: Chen
- first_name: Philipp
  full_name: Brun, Philipp
  last_name: Brun
- first_name: Pascal
  full_name: Buri, Pascal
  last_name: Buri
- first_name: Simone
  full_name: Fatichi, Simone
  id: cf8e546b-a9b0-11f0-a43b-aa89ed1b56d6
  last_name: Fatichi
- first_name: Arthur
  full_name: Gessler, Arthur
  last_name: Gessler
- first_name: Michael James
  full_name: McCarthy, Michael James
  last_name: McCarthy
- first_name: Francesca
  full_name: Pellicciotti, Francesca
  last_name: Pellicciotti
- first_name: Benjamin
  full_name: Stocker, Benjamin
  last_name: Stocker
- first_name: Dirk Nikolaus
  full_name: Karger, Dirk Nikolaus
  last_name: Karger
citation:
  ama: Chen L, Brun P, Buri P, et al. Global increase in the occurrence and impact
    of multiyear droughts. <i>Science</i>. 2025;387(6731):278-284. doi:<a href="https://doi.org/10.1126/science.ado4245">10.1126/science.ado4245</a>
  apa: Chen, L., Brun, P., Buri, P., Fatichi, S., Gessler, A., McCarthy, M. J., …
    Karger, D. N. (2025). Global increase in the occurrence and impact of multiyear
    droughts. <i>Science</i>. AAAS. <a href="https://doi.org/10.1126/science.ado4245">https://doi.org/10.1126/science.ado4245</a>
  chicago: Chen, Liangzhi, Philipp Brun, Pascal Buri, Simone Fatichi, Arthur Gessler,
    Michael James McCarthy, Francesca Pellicciotti, Benjamin Stocker, and Dirk Nikolaus
    Karger. “Global Increase in the Occurrence and Impact of Multiyear Droughts.”
    <i>Science</i>. AAAS, 2025. <a href="https://doi.org/10.1126/science.ado4245">https://doi.org/10.1126/science.ado4245</a>.
  ieee: L. Chen <i>et al.</i>, “Global increase in the occurrence and impact of multiyear
    droughts,” <i>Science</i>, vol. 387, no. 6731. AAAS, pp. 278–284, 2025.
  ista: Chen L, Brun P, Buri P, Fatichi S, Gessler A, McCarthy MJ, Pellicciotti F,
    Stocker B, Karger DN. 2025. Global increase in the occurrence and impact of multiyear
    droughts. Science. 387(6731), 278–284.
  mla: Chen, Liangzhi, et al. “Global Increase in the Occurrence and Impact of Multiyear
    Droughts.” <i>Science</i>, vol. 387, no. 6731, AAAS, 2025, pp. 278–84, doi:<a
    href="https://doi.org/10.1126/science.ado4245">10.1126/science.ado4245</a>.
  short: L. Chen, P. Brun, P. Buri, S. Fatichi, A. Gessler, M.J. McCarthy, F. Pellicciotti,
    B. Stocker, D.N. Karger, Science 387 (2025) 278–284.
das_tickbox: '1'
date_created: 2026-07-27T12:30:24Z
date_published: 2025-01-17T00:00:00Z
date_updated: 2026-08-07T10:47:08Z
day: '17'
doi: 10.1126/science.ado4245
extern: '1'
intvolume: '       387'
issue: '6731'
language:
- iso: eng
month: '01'
oa_version: None
page: 278-284
publication: Science
publication_identifier:
  eissn:
  - 1095-9203
  issn:
  - 0036-8075
publication_status: published
publisher: AAAS
quality_controlled: '1'
scopus_import: '1'
status: public
title: Global increase in the occurrence and impact of multiyear droughts
type: journal_article
user_id: ba8df636-2132-11f1-aed0-ed93e2281fdd
volume: 387
year: '2025'
...