Black carbon footprint of human presence in Antarctica.
Journal
Nature communications
ISSN: 2041-1723
Titre abrégé: Nat Commun
Pays: England
ID NLM: 101528555
Informations de publication
Date de publication:
22 02 2022
22 02 2022
Historique:
received:
26
06
2021
accepted:
19
01
2022
entrez:
23
2
2022
pubmed:
24
2
2022
medline:
13
4
2022
Statut:
epublish
Résumé
Black carbon (BC) from fossil fuel and biomass combustion darkens the snow and makes it melt sooner. The BC footprint of research activities and tourism in Antarctica has likely increased as human presence in the continent has surged in recent decades. Here, we report on measurements of the BC concentration in snow samples from 28 sites across a transect of about 2,000 km from the northern tip of Antarctica (62°S) to the southern Ellsworth Mountains (79°S). Our surveys show that BC content in snow surrounding research facilities and popular shore tourist-landing sites is considerably above background levels measured elsewhere in the continent. The resulting radiative forcing is accelerating snow melting and shrinking the snowpack on BC-impacted areas on the Antarctic Peninsula and associated archipelagos by up to 23 mm water equivalent (w.e.) every summer.
Identifiants
pubmed: 35194040
doi: 10.1038/s41467-022-28560-w
pii: 10.1038/s41467-022-28560-w
pmc: PMC8863810
doi:
Substances chimiques
Soot
0
Carbon
7440-44-0
Types de publication
Journal Article
Research Support, Non-U.S. Gov't
Langues
eng
Sous-ensembles de citation
IM
Pagination
984Informations de copyright
© 2022. The Author(s).
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