• Skip to primary navigation
  • Skip to main content
  • Skip to primary sidebar
  • Skip to footer
  • Facebook
  • Instagram
  • LinkedIn
  • TikTok
  • Twitter
  • YouTube
CDE Almería – Centro de Documentación Europea – Universidad de Almería

CDE Almería - Centro de Documentación Europea - Universidad de Almería

Centro de Documentación Europea de la Universidad de Almería

  • HOME
  • WHAT´S ON
    • EU BULLETINS
    • EU NEWS
    • Activities
    • EU Calls and Awards
    • Radio Program «Europe with You»
  • DOCUMENTATION
    • Bibliographic Collection
      • Almería EDC Digital Collection
      • UNIVERSITY OF ALMERIA LIBRARY
    • Documentation by topic
    • EU Media Collection
      • Web Space
      • MEDIATHEQUE REPOSITORY
  • Europe on the net
    • Institutions
    • EU Representation in Spain
    • European information network of Andalusia
    • EU official journal
  • ABOUT US
    • Presentation
    • People
    • Contact
  • English
  • Spanish

How will Arctic coasts be affected by global warming in 2100?

Inicio » Noticias UE » Environmental Affairs » How will Arctic coasts be affected by global warming in 2100?

25 de April de 2022

Researchers have provided the first-ever projections of coastal erosion across the entire Arctic until the end of the century. According to their findings, more and more land mass is being lost with each degree of warming.

Global warming is thawing permafrost in the Arctic and melting sea ice, leaving the coasts – where most human activity in the Arctic is concentrated – less protected and subject to erosion. Arctic coastal erosion not only damages infrastructure and threatens coastal communities, it also releases organic carbon from permafrost, compounding the vulnerability of Earth’s climate.

Scientists predict that our continually warming planet will increase rates of Arctic coastal erosion in the coming decades. However, they do not know how much or how fast coastal erosion will increase in response to global warming.

To answer this question, a new study supported by the EU-funded Nunataryuk project has provided the first-ever 21st century projections of coastal erosion for the entire Arctic. Published in the journal ‘Nature Climate Change’, the findings show that the Arctic-mean erosion rate is expected to increase and very likely exceed its historical range of variability before the end of the century under different emissions scenarios.

The researchers explored rates of erosion increase under low, moderate and very high greenhouse gas emissions scenarios. “We have run through a range of scenarios, depending on how much greenhouse gases humanity will emit in the coming years,” states the study’s lead author Dr David Nielsen of Nunataryuk project partner University of Hamburg, Germany, in a press release posted on the university’s website. “According to the study, not only is more and more land mass being lost in absolute terms; with each degree of temperature increase, the annual rate of erosion increases – in meters, but also in millions of tons of carbon released.”

Up to three times the erosion rate by the end of the century

The findings show that the rate of the Arctic-mean coastal erosion is expected to increase from 0.9 m per year during the period 1850-1950 to 1.6 2.0 and 2.6 m per year by the end of the 21st century under the low, moderate and very high greenhouse gas emissions scenarios, respectively. This means that the coastal erosion rate may be between 1.8 and 2.9 times higher by the end of 2100. In the moderate and very high emissions scenarios, erosion rates across the Arctic continue to rise in the second half of the century. However, as Dr Nielsen explains, “a shift toward greater sustainability and significantly lower greenhouse gas emissions could slow the acceleration in the second half of the century.” But this will not stop the loss of land mass entirely, he warns.

In the Arctic, coastal erosion is caused by a combination of thermal and mechanical factors. Taking this into consideration, the study’s coastal erosion model combines Arctic permafrost coastline observational data with current Earth system models, climate reanalyses and ocean surface wave simulations. “Depending on the location and shape of the respective coast, we expect to see varying wave heights. With increasing temperature, the range of the waves also increases, because the sea ice disappears. In addition, the ice-free period in the summer is lengthened, making coasts even more vulnerable,” Dr Nielsen concludes. The results of the Nunataryuk (Permafrost thaw and the changing arctic coast: science for socio-economic adaptation) study can be used to guide policymakers in coastal conservation and socioeconomic planning.

More information: CORDIS

Publicaciones relacionadas:

Sustainable supplies of raw materials is crucial for EU industry European Green Deal: Commission proposes to strengthen the protection of the environment through criminal law March 22: World Water Day Council agrees on 8th environmental action programme Complex network of European and global developments impacts sustainability

“This is a space for debate. All comments, for or against publication, that are respectful and do not contain expressions that are discriminatory, defamatory or contrary to current legislation will be published”.

Reader Interactions

Leave a Reply Cancel reply

Your email address will not be published. Required fields are marked *

This site uses Akismet to reduce spam. Learn how your comment data is processed.

Primary Sidebar

Publicaciones relacionadas


Sustainable supplies of raw materials is crucial for EU industry


European Green Deal: Commission proposes to strengthen the protection of the environment through criminal law


March 22: World Water Day


Council agrees on 8th environmental action programme


Complex network of European and global developments impacts sustainability

Footer

Logotipo en negativo del Centro de Documentación Europea de Almería
  • CDE Almería
  • Edificio Parque Científico-Tecnológico (Pita)
  • Planta: 1ª, Despacho: 2904120.
  • Ctra. Sacramento s/n. Almería (Spain)
  • Teléfono: (+34) 950 015266

HOME
NEWS
DOCUMENTATION
EUROPE ON THE NET
ABOUT US

  • LEGAL NOTICE
  • PRIVACY POLICY
  • COOKIE POLICY
  • ACCESSIBILITY
  • SITEMAP

Copyright © 2023 CDE Almería · Creative Commons LicenseThis work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.

<p>El Centro de Documentación Europea de la Universidad de Almería utiliza cookies propias y de terceros para facilitar al usuario la navegación en su página Web y el acceso a los distintos contenidos alojados en la misma. Asimismo, se utilizan cookies analíticas de terceros para medir la interacción de los usuarios con el sitio Web. Pinche el siguiente enlace si desea información sobre el uso de cookies y como deshabilitarlas. ajustes</p>

Politica de privacidad

El Centro de Documentación Europea de la Universidad de Almería utiliza cookies propias y de terceros para facilitar al usuario la navegación en su página Web y el acceso a los distintos contenidos alojados en la misma. Asimismo, se utilizan cookies analíticas de terceros para medir la interacción de los usuarios con el sitio Web. Pinche el siguiente enlace si desea información sobre el uso de cookies y como deshabilitarlas. <a href="/politica-de-cookies" rel="noopener" target="_blank">Más información</a>

Cookies estrictamente necesarias

Las cookies estrictamente necesarias tiene que activarse siempre para que podamos guardar tus preferencias de ajustes de cookies.

Básicamente la web no funcionara bien si no las activas.

Estas cookies son:

  • Comprobación de inicio de sesión.
  • Cookies de seguridad.
  • Aceptación/rechazo previo de cookies.

Si desactivas esta cookie no podremos guardar tus preferencias. Esto significa que cada vez que visites esta web tendrás que activar o desactivar las cookies de nuevo.

Cookies de terceros

Esta web utiliza Google Analytics, Google Tag Manager y Yandex Metrika para recopilar información anónima tal como el número de visitantes del sitio, o las páginas más populares.

Dejar estas cookies activas nos permite mejorar nuestra web.

¡Por favor, activa primero las cookies estrictamente necesarias para que podamos guardar tus preferencias!

Política de cookies

Pinche el siguiente enlace si desea información sobre el uso de cookies y como deshabilitarlas. Más información