Plastproblemet i Arktis Ferdi Rizkiyanto 2011 Takk for oppmerksomheten! Title PowerPoint...
Transcript of Plastproblemet i Arktis Ferdi Rizkiyanto 2011 Takk for oppmerksomheten! Title PowerPoint...
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Plastproblemet i Arktis
Geir Wing Gabrielsen
Norsk Polarinstitutt
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Temperatur økningen i Arktis er dobbelt så stor som i resten av
verden
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Aftenposten 3 November 2014
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GWG1981
Målinger av
karbon-
dioksid
(CO2) på
Zeppelin
Stasjonen i
Ny-Ålesund
GWG målte 330 ppmsommeren 1981 (21 %)
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Det brukes 2 kg råolje i produksjon av 1 kg plast.
I 2016 var plastproduksjonen på 325 millioner
tonn.
I dag brukes 8 % av olje produksjonen til å
produsere plast.
Verdens produksjonen av plast avgir
1.5 milliarder tonn karbondioksid.
Prognosen for plastproduksjonen i 2050 er 1124
millioner tonn (ca. 3-4 ganger økning fra dagens
nivå)(utslipp av karbondioksid vil da være ca. 5
milliarder tonn).
I 2050 vil vi bruke 20 % av verdens
oljeproduksjon til å produsere plast.
Ifg. The Guardian (Desember 2017): Shell
Chemical og Exon Mobile Chemical skal i de
neste ti år investere 180 milliarder norske kroner i
nye fabrikker (USA og Europa) for å øke
produksjonen av plast med 40 %.
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1976 brukte hvert menneske i verden gjennomsnittlig 2 kg plast per år.
I 2017 er dette tallet steget til 43 kg plast per år.
I samme perioden har verdens befolkning doblet seg.
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Kilder til plast
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Strandsøppel innsamlet på Svalbard
Kilde; MOSJ
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Strandsøppel Brucebukta, Svalbard
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Overvåking av plastavfall
(Svalbard)
Foto; Vegard Stürzinger
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MARP Workshop i Longyearbyen
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Kunnskapsdeling
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K. Whyles
K. Whyles Foto: Bo Eide
HVORFOR HER?
SNART MIKROPLAST PAKKEBÅND
GJENBRUK
JAKT
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GAMLE SYNDER?
KASTET?
K. Whyles
TAPT
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Strandrydding på Svalbard
Rep/tau/nett < 50 cm
Plastlokk
Lastestropper
Plastflasker
Annen plast
Matbokseri plast
Annet trevirke < 50
cm
Tauverk …Potetgull/godteposer Bøjer Annet glass
Ballonger og gummi Plast/polysterenbiter > 50 cm
Små plastposer
Elektrisk utstyr
Kilde: MARP project
Foto: Sysselmannen
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Marint avfall
• Ca. 15 % av marint avfall flyter på havoverflaten
• Ca. 70 % av marint avfall synker til havbunnen
• Ca. 15 % av marint avfall finner en på strendene
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Fordeling av plast på havbunnen,
havoverflaten og på strender
Kilde; Eunomic 2017
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Plast på
strendene er
bare «toppen av
isfjellet» når vi
snakker om
opprydding av
plastavfall i
naturen
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2017
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Hva ble funnet påhavbunnen mellomSvalbard ogGrønland?
10 cm
Hovedmengden avavfallet på havbunnenvar plast i størrelsen10 - 50 cm
Bergmann & Klages, 2012
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Mengde av plast
Mengde søppel på en lokalitet (HG IV) har økt kraftig fra 2008 til 2011
Mengde søppel på denne lokalitet i 2011 er lik den mengde en fant i Lisboa Canyon i 2009!
Berg
ma
nn
& K
lag
es
, 20
12
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(2017)
Total mengde avfall;
Barentshavet;
Ca. 101 million gjenstander som tilsvarer
79 000 tonn med avfall (mest plast)
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Buhl-Mortensen studiet (2017)
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April 2017
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Mikroplast i sjøis
Obbard et al 2014
I iskjerner fra
polbassenget fant
forskerne mellom
40 og 250
plastpartikler per
liter vann analysert.
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2012
Dannelsen av en 6th gyre i Barentshavet i 2040?
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Kilde: Havforskningsinstituttet
Plast på havoverflaten
Plast i
sjøvannet
Plast på
havbunnen
Barentshavet
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Snø- og kongekrabber fra Barentshavet
Iflg. Jan Sundet
(Havforskningsinstituttet)
så hadde 20 % av
kongekrabbene og 40 % av
snøkrabbene fra
Barentshavet mikroplast i
magene
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Kilde; Sysselmannen på Svalbard
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Foto; Stig Onarheim
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Christian Svarstad,Sysselmannen på Svalbard
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Source; Governor of Svalbard
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11.06.2009
HAVHEST
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Plastforurensningen påvirker havhester påSvalbard
• 87.5% of fulmars on Svalbard had ingested plastic (n=40)
• 0.08g per individual
• 15.3 pieces per individual1cm
1cm
1cm
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Plast som ligger i sjøen lukter dyreplankton og kan være årsaken til at
sjøfugler spiser plastbiter
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Kunnskapsbehov
1) Vi trenger en bedre kartlegging av andre
dyrearter i Arktis som spiser mikro- og nanoplast
2) Vi trenger mer kunnskap om plast under 1 mm i
størrelse (småmikroplast og nanoplastpartikler)
3) Det er et behov for å validere studiene som er gjort
på menger mikroplast i sjøvann, sjøis og sedimenter
4) Det er behov for en økt overvåking og kartlegging
av plast på strender og på havbunnen
5) Det er behov for studier som kan klarlegge
hvordan miljøgifter i plast kan påvirke menneskers
og dyrs helse
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Image: Ferdi Rizkiyanto 2011
Takk for oppmerksomheten!