Arctic’s Pristine Glaciers Bear the Scars of Global Tire Wear
For the past decade, Inuit scientist Kristian Louis Jensen has navigated the world’s most remote and seemingly untouched landscapes, armed with little more than a kayak and a ingenious, self-built microplastic filter. His mission: to document the unseen environmental toll of human activity. During his postgraduate studies in environmental protection, Jensen developed ‘the Plastsaq’, a citizen-science tool designed for kayakers and local communities. This device enables the collection of surface water samples, capturing debris from everyday items like discarded bottles and packaging.
However, Jensen’s fieldwork evolved beyond simply identifying visible plastic litter. “That work led me to ask a deeper question about the invisible footprint of humanity,” he explains. This existential query propelled him on his most recent expedition to a remote glacier in eastern Greenland, a journey that would reveal a startling and deeply concerning environmental reality.
‘Fossil Fuels in Motion’: The Unexpected Arctic Contaminant
Jensen kayaked to what he describes as one of the most “isolated corners of the Arctic,” a region hundreds of kilometres from any established road. While he anticipated finding fibres and general plastic debris – which he did – his samples yielded an even more alarming discovery: traces of car tire particles.
“Finding them on a pristine glacier in eastern Greenland was a shock because it validated a terrifying thesis: these particles are no longer just an urban issue,” Jensen states. He elaborates, “They have become dust, airborne, and have travelled thousands of kilometres to the Arctic. This is ‘fossil fuels in motion’. It tells us that the Arctic is a ‘sink’ for the world’s pollution.”
The sheer scale of the problem is staggering. Globally, over five billion tyres are in use, and each tyre sheds approximately 10 to 30 per cent of its mass throughout its lifespan. “That mass doesn’t disappear,” Jensen points out. “It breaks down into toxic dust that settles at the very start of our food chain.”
The Trifecta of Impacts: Greenland’s Microplastic Crisis
Jensen’s groundbreaking work has illuminated the extensive reach of microplastics, revealing a growing threat that is beginning to impose a significant burden on local communities in Greenland through a trifecta of interconnected problems:
Ecological Devastation: Early research indicates a high toxicity of tire wear particles for Arctic species. Jensen highlights specific concerns, noting that “chemicals like 6PPD are lethal to Coho salmon.” Furthermore, this type of pollution has been linked to deformities in Atlantic cod eggs, directly threatening the cornerstone of Greenland’s vital fishing industry.
Environmental Justice and Health Risks: For Indigenous communities, the contamination of Greenland’s waters has become a pressing issue of environmental justice. The pollution poses a serious health risk, as Jensen articulates, “We’re at the ‘end of the pipe’, breathing in and eating pollution from vehicles driven on other continents.” In urban centres, prolonged exposure to such particles has already been associated with a range of health problems, including exacerbated asthma and cardiac conditions. “In the Arctic, that threat is now settling on our food sources, turning a pristine environment into a repository for global waste,” Jensen adds. “The higher latitudes and the people living in them are disproportionately being adversely affected by global pollution and climate change.”
Regulatory Blind Spots: Scientists have been sounding the alarm about Greenland’s escalating microplastic problem for years. Numerous studies have detected higher concentrations of these minute particles in Arctic sea ice compared to notorious ocean garbage patches. However, Jensen argues that current climate policy suffers from a “critical blind spot.” He warns, “Currently, we regulate what comes out of the tailpipe, but we ignore what wears off the tire.” This oversight is particularly dangerous, given that tire particles are now recognised as a primary source of microplastics entering ecosystems worldwide.
Beyond Tailpipes: Addressing the Full Scope of Fossil Fuel Pollution
The global momentum to transition away from fossil fuels gained significant traction at recent international summits, with many nations backing a roadmap for change. However, resistance from fossil fuel-dependent states has led to the dilution of ambitious phase-out commitments in final agreements. While efforts are being made in forums outside the UN framework, Jensen points out that the focus often remains narrowly on ‘black carbon’ – emissions generated from the burning of fuel.
“We need to broaden this to include ‘carbon black’, the fossil fuel-derived filler that makes up a massive portion of every tire,” he stresses. “We cannot claim to be tackling the fossil fuel crisis if we ignore the solid petrochemicals rolling beneath our vehicles.”
Jensen advocates for greater transparency from manufacturers, calling for a “collaborative ecosystem” where ecotoxicologists have unrestricted access to the chemical compositions of modern tyres.
Launching the Black Carbon Coalition: A United Front Against Tire Pollution
Recognising that tackling global fossil fuel giants and large corporations is a monumental task, Jensen is spearheading the Black Carbon scientific coalition. Set to launch at the Arctic Frontiers conference, this initiative aims to create a cross-sector science coalition dedicated to monitoring black carbon and carbon black in the Arctic and assessing their impact on Arctic health.
The coalition will bring together a diverse group of experts, including toxicologists, Indigenous leaders, and policymakers, to rigorously investigate the specific health effects of tire particles in the Arctic. The gathered evidence will then be presented to the EU Parliament and at COP31 later this year. “Our ultimate goal is to secure national and international commitments to reduce and mitigate black carbon and tire particle emissions,” Jensen states.
Jensen’s vital work is also set to reach a wider audience through an upcoming documentary titled Black Carbon, directed by award-winning German filmmaker Steffen Krones. The film will delve into the devastating consequences of microplastics on the Arctic and the communities who inhabit these fragile ecosystems, following Jensen’s investigation and advocacy efforts. The documentary is currently in production.
