Q&A: How Trump is threatening climate science in Earth’s polar regions
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Summary
<p>Since Donald Trump returned to the White House last year, his administration in the US...</p> <p>The post <a href="https://www.carbonbrief.org/qa-how-trump-is-threatening-climate-science-in-earths-polar-regions/">Q&A: How Trump is threatening climate science in Earth’s polar regions</a> appeared first on <a href="https://www.carbonbrief.org">Carbon Brief</a>.</p>
<p>Since Donald Trump returned to the White House last year, his administration in the US has laid off <a href="https://www.nature.com/immersive/d41586-026-00088-9/index.html">thousands</a> of scientists and frozen research grants worth <a href="https://www.nature.com/immersive/d41586-026-00088-9/index.html">billions</a> of dollars.</p>
<p>The cutbacks have had far-reaching consequences for all areas of scientific research, extending all the way to Earth’s fragile polar regions, researchers say.</p>
<p>Speaking to Carbon Brief, polar researchers explain how Trump’s attacks on science have affected efforts to study climate change at Earth’s poles, including by disrupting fieldwork, preventing data collection and even forcing researchers to leave the US.</p>
<p>One climate scientist tells Carbon Brief that the administration’s decision to terminate the only US icebreaker used in Antarctica forced her to cancel her fieldwork at the last minute – with her scientific cargo still held up in Chile.</p>
<p>As US polar scientists reel from the cuts, Trump has caused a <a href="https://www.bbc.co.uk/news/articles/c74x4m71pmjo">geopolitical storm</a> with threats to take control of Greenland, the self-ruling island which is part of the Kingdom of Denmark and located between the Arctic and Atlantic oceans.</p>
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<p>Below, Carbon Brief speaks to experts about what Trump’s sweeping changes could mean for climate science at Earth’s poles</p>
<ul class="wp-block-list">
<li><a href="#1" id="#1" rel="nofollow" type="internal">Why is the US important for polar research?</a></li>
<li><a href="#2" id="#2" rel="nofollow" type="internal">How has Trump affected US polar research in his second term?</a></li>
<li><a href="#3" id="#3" rel="nofollow" type="internal">What could the changes mean for international climate research at Earth’s poles?</a></li>
<li><a href="#4" id="#4" rel="nofollow" type="internal">What could be the impact of Trump’s threats to take control of Greenland on climate research?</a></li>
</ul>
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<h2 class="wp-block-heading">Why is the US important for polar research?</h2>
<p>The US’s wealth, power and geography have made it a key player in polar research for more than a century.</p>
<p>Ahead of Trump’s second term, the <a href="https://www.nsf.gov/">National Science Foundation</a> (NSF), a federal agency that funds US science, was the <a href="https://www.nsf.gov/geo/opp">largest</a> single funder of polar research globally, with its <a href="https://www.nsf.gov/geo/opp/us-antarctic-program">Office of Polar Programs</a> overseeing extensive research in both the Arctic and Antarctica.</p>
<p>The US has three permanent bases in Antarctica: <a href="https://www.usap.gov/videoclipsandmaps/mcmwebcam.cfm">McMurdo Station</a>, <a href="https://www.nsf.gov/geo/opp/ail/amundson-scott-south-pole-station">Amundsen-Scott South Pole Station</a> and <a href="https://www.usap.gov/videoclipsandmaps/palwebcam.cfm">Palmer Station</a>.</p>
<p>In Alaska, which the US purchased from Russia in <a href="https://history.state.gov/milestones/1866-1898/alaska-purchase">1867</a>, there is the <a href="https://www.uaf.edu/toolik/">Toolik Field Station</a> and the <a href="https://eu-polarin.eu/barrow-arctic-research-center-us/">Barrow Arctic Research Center</a>. The US also has the <a href="https://geo-summit.org/">Summit Station</a> in Greenland.</p>
<p>US institutes operate several satellites that provide scientists across the world with key data on the polar regions.</p>
<p>This includes the <a href="https://www.noaa.gov/">National Oceanic and Atmospheric Administration</a>’s (NOAA) <a href="https://www.nesdis.noaa.gov/our-satellites/currently-flying/joint-polar-satellite-system">Joint Polar Satellite System</a>, which provides data used for extreme weather forecasting. </p>
<p>Over the past few years, US institutes have led and provided support for the world’s largest polar expeditions.</p>
<figure class="wp-block-image size-full"><img alt="Researchers taking part in the MOSAiC expedition in 2019. Credit: Daisy Dunne for Carbon Brief" class="wp-image-61369" height="682" src="https://www.carbonbrief.org/wp-content/uploads/2026/02/bigyellowfloat.jpg" width="1024" /><figcaption class="wp-element-caption">Researchers taking part in the MOSAiC expedition in 2019. Credit: Daisy Dunne for Carbon Brief</figcaption></figure>
<p>This includes MOSAiC, the largest Arctic expedition on record, which took place from 2019-20 and was co-led by research institutes from the US and Germany. [Carbon Brief joined the expedition for its first leg and covered it <a href="https://www.carbonbrief.org/inside-mosaic-how-a-year-long-arctic-expedition-is-helping-climate-science/">in depth</a> with a <a href="https://interactive.carbonbrief.org/when-will-the-arctic-see-its-first-ice-free-summer/index.html">series</a> <a href="https://www.carbonbrief.org/explainer-how-atlantification-is-making-the-arctic-ocean-saltier-and-warmer/">of</a> <a href="https://www.carbonbrief.org/in-depth-understanding-the-impacts-of-changing-arctic-storms/">articles</a>.]</p>
<p>The US has historically been “incredibly valuable” to research efforts in the Arctic and Antarctica, a senior US polar scientist currently living in Europe, who did not wish to be named, tells Carbon Brief.</p>
<p>“For a lot of the international collaborations, the US is a big component, if not the largest,” the scientist says.</p>
<p>“We do a lot of collaborative work with other countries,” adds <a href="https://progress.colostate.edu/identify-with-a-scientist/jessie-creaman/">Dr Jessie Creamean</a>, an atmospheric scientist working in polar regions based at <a href="https://progress.colostate.edu/identify-with-a-scientist/jessie-creaman/">Colorado State University</a>. “Doing work in the polar regions is really an international thing.” </p>
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<h2 class="wp-block-heading">How has Trump affected US polar research in his second term?</h2>
<p>Since returning to office, the Trump administration has frozen or terminated <a href="https://www.nature.com/immersive/d41586-026-00088-9/index.html">7,800</a> research grants from federal science agencies and laid off <a href="https://www.nature.com/immersive/d41586-026-00088-9/index.html">25,000</a> scientists and personnel.</p>
<p>This includes nearly <a href="https://www.nature.com/immersive/d41586-026-00088-9/index.html">2,000</a> research grants from the NSF, which is responsible for the Office for Polar Programs and for funding a broad range of climate and polar research.</p>
<p>Courts have since made orders to <a href="https://www.pbs.org/newshour/politics/judge-reverses-trump-administrations-cuts-of-billions-in-research-funding-to-harvard">reinstate</a> thousands of these grants and some universities have <a href="https://www.theguardian.com/us-news/2025/aug/07/universities-settle-trump">settled</a> with the federal government to unfreeze funding. However, it is unclear whether scientists have yet received those funds.</p>
<p>As with other areas of US science, the impact of Trump’s attacks on polar research have been far-reaching and difficult to quantify, scientists tell Carbon Brief.</p>
<p>Key scientific institutions affected include <a href="https://www.nasa.gov/">NASA</a>, NOAA and the <a href="https://ncar.ucar.edu/">National Center for Atmospheric Research</a> (NCAR) in Colorado.</p>
<p>In December, the Trump administration <a href="https://www.science.org/content/article/trump-administration-moves-break-leading-u-s-climate-and-weather-center">signalled</a> that it planned to dismantle NCAR, calling it a source of “climate alarmism”. At the end of January, the NSF published a <a href="https://www.axios.com/local/boulder/2026/01/27/science-foundation-ncar-breakup">letter</a> that “doubled down” on the administration’s promise to “restructure” and “privatise” NCAR.</p>
<p>NCAR has been responsible for a host of polar research in recent years, with several NCAR scientists involved in the <a href="https://www.carbonbrief.org/inside-mosaic-how-a-year-long-arctic-expedition-is-helping-climate-science/">MOSAiC</a> expedition.</p>
<p>“NCAR is kind of like a Mecca for atmospheric research,” the US polar scientist who did not want to be named tells Carbon Brief. “They’ve done so much. Now their funding is drying up and people are scrambling.”</p>
<p>At NOAA, one of the major polar programmes to be affected is the <a href="https://nsidc.org/home">National Snow and Ice Data Center</a> (NSIDC), which regularly issues updates about Arctic and Antarctic sea ice.</p>
<p>Last July, <a href="https://www.space.com/astronomy/earth/us-military-cuts-climate-scientists-off-from-vital-satellite-sea-ice-data">Space</a> reported that researchers at NSIDC were informed by the Department of Defense – now renamed the Department of War under Trump – that they would lose access to data from a satellite operated by the US air force, which was used to calculate sea ice changes.</p>
<p>Although the Department of Defense <a href="https://www.nytimes.com/2025/07/30/climate/hurricane-monitoring-data-defense-department.html">reversed</a> the decision following a public outcry, the uncertainty drove the researchers at NSIDC to switch to sourcing data from a <a href="https://nsidc.org/data/smmr_ssmi">Japanese satellite instead</a>, explains <a href="https://zacklabe.com/">Dr Zack Labe</a>. Labe is a climate scientist who saw his position at NOAA terminated under the Trump administration and now works at the nonprofit research group <a href="https://www.climatecentral.org/">Climate Central</a>. He tells Carbon Brief:</p>
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<p>“It looked like they were losing access to that data and, after public outcry, they regained access to the data. And then, later this year, they had to switch to another satellite.”</p>
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<p>He adds that the Trump administration’s layoffs and budget cuts has also forced the programme to scale back its communications initiatives:</p>
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<p>“A big loss at NSIDC is that they used to put out these monthly summaries of current conditions in Greenland, the Arctic and Antarctic called <a href="https://nsidc.org/sea-ice-today">Sea Ice Today</a>. It was a really important resource to describe the current weather and sea ice conditions in these regions. </p>
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<p>“These reports went to stakeholders, they went to Indigenous communities within the Arctic. And that has stopped in the past year due to budget cuts.”</p>
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<p>Elsewhere, the <a href="https://www.nytimes.com/2025/02/25/climate/trump-nsf-cuts-antarctica.html">New York Times</a> reported that a director at the Office for Polar Programs found out she was being laid off while on a trip to Antarctica.</p>
<p>US polar research took another hit in September, when the NSF <a href="https://www.nsf.gov/geo/opp/updates/update-nathaniel-b-palmer">announced</a> that it was terminating the lease for the <a href="https://www.vesselfinder.com/vessels/details/9007257">Nathaniel B Palmer</a>, the only US icebreaker dedicated to Antarctic research. </p>
<figure class="wp-block-image size-full"><img alt="The Nathaniel B Palmer pictured at the Ross Ice Shelf in Antarctica. Credit: NOAA" class="wp-image-61371" height="669" src="https://www.carbonbrief.org/wp-content/uploads/2026/02/pl23_corp2528.jpg" width="1024" /><figcaption class="wp-element-caption">The Nathaniel B Palmer pictured at the Ross Ice Shelf in Antarctica. Credit: <a href="https://www.noaa.gov/digital-collections/search/all/item?search_api_fulltext=palmer%20ice%20breaker%20&page=0" id="https://www.noaa.gov/digital-collections/search/all/item?search_api_fulltext=palmer%20ice%20breaker%20&page=0" type="link">NOAA</a></figcaption></figure>
<p>The statement gave just one month’s notice, saying that the vessel would be returned to its operator in October.</p>
<p>Creamean was among the scientists who were affected by the termination. She tells Carbon Brief:</p>
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<p>“I was supposed to go on that icebreaker in September. I have a project funded at Palmer Station, along with colleagues from <a href="https://scripps.ucsd.edu/">Scripps Institution of Oceanography</a>. We were supposed to go set up for an 18-month study there. We have the money for the project, but we just didn’t get to go because the icebreaker got decommissioned.</p>
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<p>“It was a big bummer. We shipped everything down to South America. All of our cargo is still sitting in Punta Arenas [in Chile].” </p>
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<p>Elsewhere, other scientists have warned that the termination of the icebreaker could affect the continuity of Antarctic data collection. </p>
<p>In a <a href="https://www.colorado.edu/today/2025/09/16/us-retire-its-only-icebreaker-stranding-polar-research">statement</a>, <a href="https://cires.colorado.edu/people/naomi-ochwat">Dr Naomi Ochwat</a>, a glaciologist at the <a href="https://www.colorado.edu/today/2025/09/16/us-retire-its-only-icebreaker-stranding-polar-research">University of Colorado, Boulder</a>, said that decades of data on changes to Antarctic glaciers taken from the deck of the Palmer had been vital to her research.</p>
<p>For some, one of the most worrying impacts of Trump’s attacks on US polar science is on the careers of scientists, which will likely lead to many of them leaving the country.</p>
<p>All of the researchers that Carbon Brief spoke to said they had heard many stories of US polar scientists deciding to relocate outside of the country or to leave the profession altogether.</p>
<p>Creamean is one of the polar scientists to make the difficult decision to temporarily leave the US. She says:</p>
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<p>“I’m actually moving to Sweden for a year starting in May. I’m going to do a visiting science position [at <a href="https://www.su.se/english">Stockholm University</a>]. I’m hoping to come back. But if things are not looking good and things are looking more positive in Sweden, maybe I’ll stay there. I don’t know.”</p>
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<p>Labe tells Carbon Brief that the “brain drain” of US scientists is the “biggest story” when it comes to Trump’s impact on polar research:</p>
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<p>“I think one of the long-term repercussions is just how many people will be forced out of science due to a lack of opportunities. I think this is something that will grow in 2026. There were a lot of grants that were two-to-three years and, so, were still running, but they will be ending now.”</p>
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<h2 class="wp-block-heading">What could the changes mean for international climate research at Earth’s poles?</h2>
<p>With all research at Earth’s poles relying heavily on international collaboration, Trump’s attacks on science are likely to have far-reaching implications outside of the US, scientists tell Carbon Brief.</p>
<p>One implication of budget and personnel cuts could be the loss of continuous data from US researchers, bases and satellites.</p>
<p>Many US polar datasets have been collected for decades and are relied upon by scientists and institutes around the world. This includes <a href="https://catalog.data.gov/dataset/?tags=polar&_tags_limit=0">records</a> for Arctic and Antarctica’s oceans, sea ice, atmosphere and wildlife. </p>
<p>Trump’s impact has highlighted to scientific organisations outside of the US how vulnerable US datasets can be to political changes, says Labe, adding:</p>
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<p>“From a climate perspective, you need a consistent data record over a long period of time. Even a small gap in data caused by uncertainty can cause major issues in understanding long-term trends in the polar regions.</p>
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<p>“Other scientific organisations around the world are realising that they’re going to have to find alternative sources for data.”</p>
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<p>Creamean tells Carbon Brief that, while some datasets have been discontinued, researchers have made an effort to keep records going despite personnel and budget constraints. She says:</p>
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<p>“I know at Summit Station in Greenland they had some instruments that were pulled out that had been measuring things like the <a href="https://www.arl.noaa.gov/research/surface-atmosphere-exchange-home/sae-programs-sebn/">surface energy budget</a> for a long time. That dataset has been discontinued.</p>
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<p>“Thankfully, some programmes have been able to somehow hold on and continue to do baseline measurements. There’s a station up in Alaska [Barrow] where, as far as I know, measurements have been maintained there. That’s good because some measurements up there have been happening since the 60s and 70s.”</p>
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<figure class="wp-block-image size-full"><img alt="Summit Station in Greenland. Credit: NOAA" class="wp-image-61370" height="680" src="https://www.carbonbrief.org/wp-content/uploads/2026/02/pl23_arct1107.jpg" width="1024" /><figcaption class="wp-element-caption">Summit Station in Greenland. Credit: <a href="https://www.noaa.gov/digital-collections/search/all/item?search_api_fulltext=summit%20station&page=0" id="https://www.noaa.gov/digital-collections/search/all/item?search_api_fulltext=summit%20station&page=0" type="link">NOAA</a></figcaption></figure>
<p>Trump’s changes could also cast uncertainty over the US’s role in taking part and offering support to upcoming collaborative Arctic and Antarctic expeditions.</p>
<p>In addition to helping scientists better understand the impact of climate change on Earth’s polar regions, these expeditions have also enabled countries with testy geopolitical relationships to come together for a common goal, the US polar scientist who did not want to be named tells Carbon Brief.</p>
<p>For example, the <a href="https://www.carbonbrief.org/inside-mosaic-how-a-year-long-arctic-expedition-is-helping-climate-science/">MOSAiC expedition</a> from 2019-20 saw the US and Germany work alongside Russian and Chinese research institutes to study the impact of climate change on the Arctic, says the scientist, adding:</p>
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<p>“It was an international collaboration that involved people who should be geopolitical enemies. Science is a way that we seem to be able to work together, to solve problems together, because we all live on one planet. And, right now, to see these changes in the US, it’s quite concerning [for these kinds of collaborations].”</p>
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<figure class="wp-block-image size-full"><img alt="A team of researchers take ice cores in front of the Russian icebreaker Akademik Fedorov during the MOSAiC expedition in 2019. Credit: Daisy Dunne for Carbon Brief" class="wp-image-61372" height="683" src="https://www.carbonbrief.org/wp-content/uploads/2026/02/researchers-in-red-on-the-ice.jpg" width="1024" /><figcaption class="wp-element-caption">A team of researchers take ice cores in front of the Russian icebreaker Akademik Fedorov during the MOSAiC expedition in 2019. Credit: Daisy Dunne for Carbon Brief</figcaption></figure>
<p>The retreat of the US from polar research might see other powers step up to fill the gap, scientists tell Carbon Brief. </p>
<p>Several scientists mentioned the Nordic countries as possibly taking a larger role in leading polar research, while one said that “China seems to be picking up the slack that’s left behind”.</p>
<p>China currently has <a href="https://features.csis.org/hiddenreach/china-polar-research-facility/">five</a> Antarctic research stations – Great Wall, Zhongshan, Kunlun, Taishan and Qinling – along with one Arctic station in <a href="https://interactive.carbonbrief.org/arctic-svalbard-climate-scientists/index.html">Ny-Ålesund</a>, Svalbard.</p>
<p>The <a href="https://www.ft.com/content/9d726e1a-8b64-41e8-9e29-5bda58f05b3e">Financial Times</a> recently reported on China’s growing ambitions for Arctic exploration, involving its fleet of five icebreakers.</p>
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<h2 class="wp-block-heading">What could be the impact of Trump’s threats to take control of Greenland on climate research?</h2>
<p>In recent months, Trump has whipped up a <a href="https://apnews.com/article/greenland-united-states-journalists-international-media-56700602f0873102e94b3c5c43cc5a1a">media frenzy</a> with threats to take control of Greenland, the world’s largest island lying between the Arctic and Atlantic oceans, which is self-governing and part of the Kingdom of Denmark.</p>
<p>Last month, he <a href="https://www.bbc.co.uk/news/articles/c74x4m71pmjo">clarified</a> that he will not try to take Greenland “by force”, but that he is seeking “immediate negotiations” to acquire the island for “national security reasons”.</p>
<p>Trump’s interest in the island is likely influenced by the rapid melting away of Arctic sea ice due to climate change, which is opening up new sea routes and avenues for potential resource exploitation, reported the <a href="https://www.washingtonpost.com/climate-environment/2026/01/18/melting-arctic-greenland-trump-2/">Washington Post</a>.</p>
<p>His comments have sparked condemnation from a wide range of US scientists who conduct fieldwork in Greenland.</p>
<p>An open <a href="https://docs.google.com/document/d/1y6jrCmRiaxWG8SV7ekwlni5G2p9IszPhlPs4dTOfkwE/edit?tab=t.0">letter</a> signed by more than 350 scientists “vehemently opposes” Trump’s threats to take control of Greenland and expresses “solidarity and gratitude” to Greenland’s population. It says:</p>
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<p>“Greenland deserves the world’s attention: it occupies a key position geopolitically and geophysically. As climate warms, rapid loss of Greenland’s ice affects coastal cities and communities worldwide.”</p>
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<p>A breakdown in diplomatic relations between the US and Greenland could prevent scientists from being able to carry out their climate research on the island, one of the scientists to sign the letter wrote in a supporting statement:</p>
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<p>“Scientific access to Arctic environments is essential for research which secures our shared future and, directly, materially benefits American citizens. It is deeply upsetting that these essential relationships are being undermined, perhaps irreparably, by the Trump administration.”</p>
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<p><a href="https://yarrowaxford.com/">Dr Yarrow Axford</a>, one of the letter’s organisers who is a palaeoclimatologist and science communicator based in Massachusetts, told <a href="https://www.nature.com/articles/d41586-026-00068-z">Nature</a> that Trump’s comments could put Greenland climate research at risk, saying:</p>
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<p>“We Americans have benefited from all these decades of peaceful partnership with Greenland. Scientific understanding of climate change has benefited tremendously. I hope scientists can reach out to Congress and point out what a wonderful partnership that is.”</p>
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<p>In addition to the US-run Summit Station, there are at least <a href="https://arctichub.gl/guides/overview-of-research-stations-in-greenland/">eight other research stations</a> in Greenland, operated by a range of institutions from across the world.</p>
<figure class="wp-block-image size-full"><img alt="Aerial view of Greenland ice sheet." class="wp-image-61376" height="683" src="https://www.carbonbrief.org/wp-content/uploads/2026/02/2MB8BJ8.jpg" width="1024" /><figcaption class="wp-element-caption">Aerial view of Greenland ice sheet. Credit: Alvis Upitis / <a href="https://www.alamy.com/aerial-view-of-greenland-ice-sheet-or-inland-ice-near-ilulissant-as-it-covers-80-of-greenland-jakobshaun-glacier-in-disko-bay-image506046640.html?imageid=3F231C45-FC93-41F1-852D-30A7F38463A7&pn=1&searchId=f22f6f3c1f69bfe6f1482778c7e5fbd8&searchtype=0" id="https://www.alamy.com/aerial-view-of-greenland-ice-sheet-or-inland-ice-near-ilulissant-as-it-covers-80-of-greenland-jakobshaun-glacier-in-disko-bay-image506046640.html?imageid=3F231C45-FC93-41F1-852D-30A7F38463A7&pn=1&searchId=f22f6f3c1f69bfe6f1482778c7e5fbd8&searchtype=0" type="link">Alamy Stock Photo</a></figcaption></figure>
<p>A major focus of research efforts in the region is the <a href="https://www.carbonbrief.org/guest-post-how-the-greenland-ice-sheet-fared-in-2025/">Greenland ice sheet</a>, Earth’s second-largest body of ice which is rapidly melting away because of climate change.</p>
<p>The ice sheet holds enough freshwater to raise global sea levels by around <a href="https://www.carbonbrief.org/daily-brief/greenland-losing-30m-tonnes-of-ice-an-hour-study-reveals/">more than seven metres</a>, if melted completely.</p>
<p>Any political moves that could “jeopardise” the study of the Greenland ice sheet would be detrimental, says Creamean: </p>
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<p>“Greenland is a ‘<a href="https://www.carbonbrief.org/explainer-nine-tipping-points-that-could-be-triggered-by-climate-change/">tipping point</a>’ in that, the ice sheet melting, that could be one of the biggest contributors to sea level rise. It’s not like we can wait to study it, it needs to be understood now.”</p>
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<a href="https://www.carbonbrief.org/limiting-warming-to-2c-is-crucial-to-protect-pristine-antarctic-peninsula/"><img src="https://www.carbonbrief.org/wp-content/uploads/2026/02/3DN3M56-300x200.jpg" /></a>
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<p class="text-header-s content"><a href="https://www.carbonbrief.org/limiting-warming-to-2c-is-crucial-to-protect-pristine-antarctic-peninsula/">Limiting warming to 2C is ‘crucial’ to protect pristine Antarctic Peninsula</a></p>
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<p class="text-header-s content"><a href="https://www.carbonbrief.org/antarctic-sea-ice-winter-peak-in-2025-is-third-smallest-on-record/">Antarctic sea ice winter peak in 2025 is third smallest on record</a></p>
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<p class="text-header-s content"><a href="https://www.carbonbrief.org/guest-post-how-atmospheric-rivers-are-bringing-rain-to-west-antarctica/">Guest post: How atmospheric rivers are bringing rain to West Antarctica </a></p>
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<p>The post <a href="https://www.carbonbrief.org/qa-how-trump-is-threatening-climate-science-in-earths-polar-regions/">Q&A: How Trump is threatening climate science in Earth’s polar regions</a> appeared first on <a href="https://www.carbonbrief.org">Carbon Brief</a>.</p>