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Argentino, Claudio; Waghorn, Kate Alyse; Vadakkepuliyambatta, Sunil; Polteau, Stephane; Bünz, Stefan; Panieri, Giuliana

Journal: Scientific Reports

Robinson, Adam H.; Callow, Ben; Böttner, Christoph; Yilo, Naima; Provenzano, Giuseppe; Falcon-Suarez, Ismael H; Marin-Moreno, Héctor; Lichtschlag, Anna; Bayrakci, Gaye; Gehrmann, Romina; Parkes, Lou; Roche, Ben; Saleem, Umer; Schramm, Bettina; Waage, Malin; Lavayssière, Aude; Li, Jianghui; Jedari-Eyvazi, Farid; Sahoo, Sourav; Deusner, Christian; Kossel, Elke; Minshull, Timothy A.; Berndt, Christian; Bull, Jonathan M.; Dean, Marcella; James, Rachael H.; Chapman, Mark; Best, Angus I.; Bünz, Stefan; Chen, Baixin; Connelly, Douglas P.; Elger, Judith; Haeckel, Matthias; Henstock, Timothy J.; Karstens, Jens; Macdonald, Calum; Matter, Juerg M.; North, Laurence; Reinardy, Benedict

Journal: International Journal of Greenhouse Gas Control

Hong, Wei-Li; Pape, T; Schmidt, C.; Yao, Haoyi; Wallmann, K.; Plaza-Faverola, Andreia; Rae, J.W.B; Lepland, Aivo; Bünz, Stefan; Bohrmann, G.

Journal: Marine and Petroleum Geology

Conti, Stefano; Argentino, Claudio; Fioroni, Chiara; Salocchi, Aura Cecilia; Fontana, Daniela

Journal: Geosciences

Waage, Malin; Singhroha, Sunny; Bünz, Stefan; Planke, Sverre; Waghorn, Kate Alyse; Bellwald, Benjamin

Journal: International Journal of Greenhouse Gas Control

Photo

A cautious return to the sea-ice.

Henry Patton (left), Anna Silyakova and Christine Lockwood-Ireland make their way back to the ice pack in the Greenland Sea.  Anna Silyakova was collecting ice cores from the sea ice to investigate methane-associated processes within, when the group was interrupted by a passing polar bear. They had to quickly abandon station and return to the safety of the research vessel Kronprins Haakon.

Methane is a greenhouse gas, and as it rises through the water column it gets captured within the sea-ice structure during ice formation. Although ice typically behaves as a barrier for gases to go through, sea-ice is often permeable and a great mediator of gas exchange in polar regions. Being porous, sea-ice provides paths for gases like methane to pass from the ocean surface to the atmosphere where it can make an impact on climate. So, after a polar bear break the scientists returned to the ice pack, albeit cautiously, and collected more samples.

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