{"id":80498,"date":"2026-01-21T13:38:05","date_gmt":"2026-01-21T12:38:05","guid":{"rendered":"https:\/\/magazin.tu-braunschweig.de\/?post_type=kb_magazin&p=80498"},"modified":"2026-01-21T14:59:21","modified_gmt":"2026-01-21T13:59:21","slug":"the-arctic-makes-me-feel-alive","status":"publish","type":"kb_magazin","link":"https:\/\/magazin.tu-braunschweig.de\/en\/m-post\/the-arctic-makes-me-feel-alive\/","title":{"rendered":"\u201cThe Arctic makes me feel alive\u201d"},"content":{"rendered":"

Many people curse the cold season. Emma Cameron, on the other hand, enjoys it so much that the doctoral student at the Institute for Geosystems and Bioindication <\/a>\u00a0at Technical University of Braunschweig regularly sets off on expeditions to the Canadian Arctic. Neither frostbite nor equipment failure can stop her from taking sediment samples in the ice.<\/p>\n

March 2025, Mackenzie Delta region, Canadian Arctic: Emma Cameron stands in the middle of a frozen lake, facing a hole in the ice. Slowly, she lets a rope slip from her hand into the dark water \u2013 along with a heavy piece of equipment, a sediment corer. Similar to a drill penetrating a porous wall, it penetrates deeper and deeper into the bottom of the lake.<\/p>\n

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Emma Cameron with a sediment core shortly after sampling. Picture credit: Moritz Langer\/Vrije Universiteit Amsterdam.<\/p><\/div>\n

The sediment accumulates layer by layer in a tube. Once the corer is at the desired depth, Cameron pulls it up with all her strength. A valve closes at the top of the tube, creating negative pressure. This keeps the sediment core intact \u2013 but only until it breaks through the surface of the water.<\/p>\n

To prevent the sample from being lost, Cameron resorts to an unusual method: she dips her bare hands into the water and seals the tube shut with a cap. \u201cAt around one degree Celsius, the water isn’t the biggest problem,\u201d she says. \u201cThe air is minus 40 degrees. When I pull my hands out of the lake, I can see the water freezing on my skin within seconds.\u201d As soon as the corer is pulled out of the lake, everything has to happen quickly. It is only once the sample is secured that the scientist slips into prepared gloves containing heat pads.<\/p>\n

Back in the comparatively warm Braunschweig, the doctoral student at the Institute for Geosystems and Bioindication reports on the sampling at the bottom of Arctic lakes. For her, the sediment cores are more like treasure than mud \u2013 they are archives of the environmental history of the Arctic.<\/p>\n

A journey through time into the climate of the past<\/strong><\/h3>\n

In the laboratory at TU Braunschweig, Cameron analyses the remains of small animals and algae that are left behind in the sediment and can provide clues about salt and ice conditions. She is also interested in identifying which chemical substances are present in the sediment \u2013 particularly residues from earlier exploratory drilling for oil and gas. In the Canadian Arctic, extensive exploration for such resources took place throughout the last century. The resulting waste products are still stored in pits in the permafrost, so-called drilling mud sumps. \u201cAs the Arctic is experiencing climate change faster than anywhere else, permafrost is thawing rapidly, and toxic drilling fluids <\/a>may migrate into nearby waters,\u201d explains Cameron.<\/p>\n

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At the Institute for Geosystems and Bioindication, Emma Cameron is researching how the environment of Arctic lakes has changed over the last hundred years. Picture credit: Kristina Rottig\/TU Braunschweig.<\/p><\/div>\n

The potential consequences of these changes are a growing source of concern in the Mackenzie Delta region: Will the ground become unstable as permafrost thaws? Are residues from the drilling mud sumps already moving toward surrounding lakes? To better understand and scientifically assess these processes, Cameron is part of the European research network <\/span>\u201cThinIce\u201d<\/a>. Together with geochemists, geophysicists, hydrologists and microbiologists, she regularly takes part in four-week field expeditions in the Arctic.<\/span><\/p>\n

In the Arctic improvisation is part of everyday life<\/strong><\/h3>\n

There, they work closely with the Arctic community. This benefits both sides equally. \u201cWhen my GPS failed due to the cold, I wouldn’t have been able to find my way around the endless white, flat landscape without the help of my local colleagues,\u201d recalls Cameron. Without this support, targeted sampling would have been virtually impossible. Furthermore, they wouldn’t have seen half as many wild animals.<\/p>\n

All of this is only possible because Cameron and the rest of the \u201cThinIce\u201d team is willing to work under conditions that go far beyond normal everyday research. She is fascinated by the extreme temperatures, the abundance of unanswered research questions, and the unpredictability of each day. \u201cYou always need a Plan B, and usually a Plan C as well,\u201d says the doctoral student. When her original corer froze, she and a colleague quickly constructed an alternative using plumbing pipes purchased from the local hardware store. The method worked surprisingly well.\u00a0 \u201cAt minus 40 degrees, our technology is sometimes simply unusable,\u201d says Cameron. \u201cThen you have to get creative.\u201d<\/p>\n

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The ThinIce team together with their local colleagues. From left to right: Aaron F\u00f6rderer (RWTH Aachen), Frederieke Miesner (Alfred Wegener Institute), Emma Cameron (TU Braunschweig), Mehriban Aliyeva (Alfred Wegener Institute), Benjamin Banaskiewicz (Alfred Wegener Institute), two members of the Hunters and Trappers Committee, Moritz Langer (Vrije Universiteit Amsterdam). Picture credit: ThinIce.<\/p>\n \n<\/div>\n

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From the air, the numerous lakes that characterise the Mackenzie Delta are clearly visible. Picture credit: Emma Cameron\/TU Braunschweig.<\/p>\n \n<\/div>\n

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The researchers' equipment is transported between various locations on a sled pulled by a snowmobile. Picture credit: Emma Cameron\/TU Braunschweig.<\/p>\n \n<\/div>\n

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At -40\u00b0C, Cameron's sediment corer froze. The solution: a homemade replacement made from materials bought in the local hardware store. Standing next to Cameron is local wildlife monitor, Miles Dillon. Bildnachweis: Moritz Langer\/Vrije Universiteit Amsterdam.<\/p>\n \n<\/div>\n

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Sampling with the improvised sediment corer. Picture credit: Emma Cameron\/TU Braunschweig.<\/p>\n \n<\/div>\n

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Emma Cameron at the famous Arctic Ocean sign in Tuktoyaktuk, Northwest Territories. Picture credit: Mehriban Aliyeva\/Alfred Wegener Institute.<\/p>\n \n<\/div>\n

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The Northern Lights were visible right outside the accommodation of the Thin Ice Team. Picture credit: Emma Cameron\/TU Braunschweig.<\/p>\n \n<\/div>\n

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Numerous sediment cores are waiting to be analysed at TU of Braunschweig. Picture credit: Emma Cameron\/TU Braunschweig.<\/p>\n \n<\/div>\n\n<\/div>\n\n

An extra dose of responsibility<\/strong><\/h3>\n

The project is still in its early stages. Therefore, it is not yet possible to make any concrete statements about potential environmental impacts. However, initial physical evidence suggests that the drilling mud sumps are subsiding and that potential flow paths towards the lakes could be forming.<\/p>\n

In the long term, the research should help to better assess risks and set priorities for targeted environmental monitoring \u2013 especially for the people who have lived in the region for generations.<\/p>\n

This is precisely what motivates Cameron: \u201cIt’s about the bigger picture: what is happening to these lakes that local communities rely on? This gives the whole project an extra dose of responsibility.\u201d Numerous sediment cores are waiting to be analysed at TU Braunschweig. However, one thing is already certain: this was not her last visit to the Arctic.<\/p>\n<\/div>\n","protected":false},"excerpt":{"rendered":"

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