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id="headerimage" class="container"> <div id="headerimage-title" style="left: auto; right: 8.3%; bottom: 13.65%;"> <div id="headerimage-abbr" style="background-color: rgb(0, 125, 184);">CR</div> <div id="headerimage-name" style="color: #333; background-color: rgba(255, 255, 255, 0.8)">Cryospheric Sciences</div> </div> </div></header> <nav id="breadcrumb"><div class="container"><a href="/">EGU Blogs</a> » <a href="/divisions/">Divisions</a> » <a href="https://blogs.egu.eu/divisions/cr">Cryospheric Sciences</a> » Author Archive</div></nav> <header class="entry-header page-header" style=""> <div class="container"> <img width="80" height="80" src="https://blogs.egu.eu/divisions/cr/files/2025/03/Lily-Thompson-150x150.jpg" class="avatar avatar-80 photo wp-post-image" alt="" decoding="async" /><div class="author-meta"> <h1 class="entry-title" style="">Lily Thompson</h1> <h2 class="subtitle" style="">Lily Thompson is an MPhil Student at the University of Cambridge, UK. She investigates the ways in which we define the Arctic as a region, analysing the future relevance of physical environmental boundaries and assessing the implications of new emerging political definitions. Selecting to use different Arctic definitions has far-reaching consequences for national policy documents and Arctic stakeholders, as well as critical significance for the environmental and geopolitical future of the Arctic region under ongoing climate change. You can find Lily on Instagram: @lilythompp. Contact Email: lilyannthompson02@gmail.com</h2> </div> </div> </header> <div id="content-wrapper" class="container"> <div id="content"> <div class="post-wrapper blog-masonry"> <article class="post-loop post-16497 post type-post status-publish format-standard has-post-thumbnail hentry category-climate-change-cryosphere tag-arctic-sea-ice tag-arctic-shipping tag-climate-change tag-sea-routes"> <header class="entry-header"> <h2 class="loop-title"><a href="https://blogs.egu.eu/divisions/cr/2025/03/07/navigating-the-polar-frontier-effects-of-sea-ice-decline-on-shipping-and-sea-routes/" title="Navigating the polar frontier: exploring the effects of sea-ice decline on shipping and sea routes in the Arctic" target="">Navigating the polar frontier: exploring the effects of sea-ice decline on shipping and sea routes in the Arctic</a></h2> <div class="entry-meta"> <span class="meta-author"><a href="https://blogs.egu.eu/divisions/cr/author/lily-thompson/" title="Posts by Lily Thompson" class="author url fn" rel="author">Lily Thompson</a></span> <span class="meta-date">March 7, 2025</span> </div>  </header>  <div class="post-thumbnail wp-caption aligncenter"> <a href="https://blogs.egu.eu/divisions/cr/2025/03/07/navigating-the-polar-frontier-effects-of-sea-ice-decline-on-shipping-and-sea-routes/"> <img src="https://blogs.egu.eu/divisions/cr/files/2025/03/Christopher-Michel-Flickr-CC-BY-2.0-700x395.jpg" data-rel="https://blogs.egu.eu/divisions/cr/files/2025/03/Christopher-Michel-Flickr-CC-BY-2.0.jpg" width="700" height="395" alt="Navigating the polar frontier: exploring the effects of sea-ice decline on shipping and sea routes in the Arctic" class="wp-post-image" /> </a> <div class="featured_caption">Figure 1: Icebreaker traversing the Arctic Ocean, navigating the thick blanket of sea ice which obstructs its path [Credit: Christopher Michel/Flickr, CC BY 2.0].</div> </div> <div class="entry-content"> <p>Sea ice is a critical part of the unique Arctic ecosystem, but climate change is becoming a serious threat. Warming in the Arctic has already resulted in the loss of over 4 million km² of sea ice. But is it all bad? Retreat of Arctic sea ice is allowing more ships to navigate the Arctic Ocean, along shorter, faster and cheaper sea routes, providing emission reductions of 24%. But will the growth o ...<a href="https://blogs.egu.eu/divisions/cr/2025/03/07/navigating-the-polar-frontier-effects-of-sea-ice-decline-on-shipping-and-sea-routes/" class="read-more more-link" title="Navigating the polar frontier: exploring the effects of sea-ice decline on shipping and sea routes in the Arctic">[Read More]</a></p> </div> </article> </div> </div> <aside id="sidebar"> <div id="text-2" class="widget widget_text"><h3 class="widgettitle">About</h3> <div class="textwidget"><p>Welcome to the <a href="/divisions/cr/about/">blog</a> of the <a href="http://www.egu.eu/cr/">Cryospheric Sciences (CR) Division</a> of the <a href="http://www.egu.eu">European Geosciences Union</a> (EGU). The aim of the blog is to get you, the reader, excited about all things related to ice, whether it be the tiniest ice crystals, snow drifts, beautiful mountain glaciers or the vast polar ice sheets. Here, the latest fieldwork programmes, research projects or scientific results will be showcased by bloggers from the cryospheric community. The blog is currently run by Loeka Jongejans, Lina Madaj and Maria Scheel. Would you like to write a blog entry about your research? Please get in touch with the editors, Loeka Jongejans (email: loeka.jongejans(at)live.nl), Lina Madaj (email: l.madaj(at)vu.nl) or Maria Scheel (email: maria.scheel(at)envs.au.dk).</p> </div> </div><div id="block-2" class="widget widget_block widget_media_image"> <figure class="wp-block-image size-medium is-resized"><a href="https://blogs.egu.eu/divisions/cr/2021/10/22/its-getting-hot-in-here-ancient-microbes-in-thawing-permafrost/"><img loading="lazy" decoding="async" src="https://blogs.egu.eu/divisions/cr/files/2022/02/Best-Blog-panel-2021-300x300.png" alt="Blue circle with yellow EGU logo and yellow text saying winner 2021, best blog post, panel vote." class="wp-image-11841" width="300" height="300" srcset="https://blogs.egu.eu/divisions/cr/files/2022/02/Best-Blog-panel-2021-300x300.png 300w, https://blogs.egu.eu/divisions/cr/files/2022/02/Best-Blog-panel-2021-150x150.png 150w, https://blogs.egu.eu/divisions/cr/files/2022/02/Best-Blog-panel-2021-768x769.png 768w, https://blogs.egu.eu/divisions/cr/files/2022/02/Best-Blog-panel-2021-100x100.png 100w, https://blogs.egu.eu/divisions/cr/files/2022/02/Best-Blog-panel-2021-399x400.png 399w, https://blogs.egu.eu/divisions/cr/files/2022/02/Best-Blog-panel-2021.png 792w" sizes="auto, (max-width: 300px) 100vw, 300px" /></a></figure> </div><div id="block-3" class="widget widget_block widget_media_image"> <figure class="wp-block-image size-medium"><a href="https://blogs.egu.eu/divisions/cr/2019/09/06/cryo-adventures-life-and-science-at-a-central-greenland-ice-core-drilling-camp/"><img loading="lazy" decoding="async" width="300" height="300" src="https://blogs.egu.eu/divisions/cr/files/2022/02/Best-Blog-panel-2019-300x300.png" alt="Blue circle with yellow EGU logo and yellow text saying winner 2019, best blog post, panel vote." class="wp-image-11847" srcset="https://blogs.egu.eu/divisions/cr/files/2022/02/Best-Blog-panel-2019-300x300.png 300w, https://blogs.egu.eu/divisions/cr/files/2022/02/Best-Blog-panel-2019-150x150.png 150w, https://blogs.egu.eu/divisions/cr/files/2022/02/Best-Blog-panel-2019-768x769.png 768w, https://blogs.egu.eu/divisions/cr/files/2022/02/Best-Blog-panel-2019-100x100.png 100w, https://blogs.egu.eu/divisions/cr/files/2022/02/Best-Blog-panel-2019-399x400.png 399w, https://blogs.egu.eu/divisions/cr/files/2022/02/Best-Blog-panel-2019.png 792w" sizes="auto, (max-width: 300px) 100vw, 300px" /></a></figure> </div><div id="block-4" class="widget widget_block widget_media_image"> <figure class="wp-block-image size-medium"><a href="https://blogs.egu.eu/divisions/cr/2016/09/02/image-of-the-week-the-journey-of-a-snowflake/"><img loading="lazy" decoding="async" width="300" height="300" src="https://blogs.egu.eu/divisions/cr/files/2022/02/Best-Blog-2016-300x300.png" alt="Blue circle with yellow EGU logo and yellow text saying winner 2016, best blog post." class="wp-image-11850" 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title="Hydrological Sciences" class="divisionabbr" style="background-color:rgb(37, 136, 56);" href="/divisions/hs/">HS</a> <a title="Natural Hazards" class="divisionabbr" style="background-color:rgb(117, 63, 47);" href="/divisions/nh/">NH</a> <a title="Nonlinear Processes in Geosciences" class="divisionabbr" style="background-color:rgb(15, 30, 61);" href="/divisions/np/">NP</a> <a title="Ocean Sciences" class="divisionabbr" style="background-color:rgb(39, 75, 150);" href="/divisions/os/">OS</a> <a title="Planetary and Solar System Sciences" class="divisionabbr" style="background-color:rgb(147, 45, 117);" href="/divisions/ps/">PS</a> <a title="Seismology" class="divisionabbr" style="background-color:rgb(160, 49, 80);" href="/divisions/sm/">SM</a> <a title="Stratigraphy, Sedimentology and Palaeontology" class="divisionabbr" style="background-color:rgb(145, 107, 42);" href="/divisions/ssp/">SSP</a> <a title="Soil System Sciences" class="divisionabbr" style="background-color:rgb(107, 74, 8);" href="/divisions/sss/">SSS</a> <a title="Solar-Terrestrial Sciences" class="divisionabbr" style="background-color:rgb(117, 56, 122);" href="/divisions/st/">ST</a> <a title="Tectonics and Structural Geology" class="divisionabbr" style="background-color:rgb(190, 84, 9);" href="/divisions/ts/">TS</a> </p></div><div id="egu_network_blogs_widget-2" class="widget widget_egu_network_blogs_widget"><h3 class="widgettitle">EGU Network Blogs</h3><div id="networkblogswidget"><figure class="networkpreview"><a title="Geology for Global Development" href="/network/gfgd/"> <img height="63" width="147" src="https://blogs.egu.eu/divisions/cr/wp-content/themes/vivacity-egu/images/network/gfgd-thumb.jpg" class="preview_Geology for Global Development" alt="Geology for Global Development"/> <figcaption>Geology for Global Development</figcaption></a></figure><figure class="networkpreview"><a title="VolcanicDegassing" href="/network/volcanicdegassing/"> <img height="63" width="147" src="https://blogs.egu.eu/divisions/cr/wp-content/themes/vivacity-egu/images/network/volcanicdegassing-thumb.jpg" class="preview_VolcanicDegassing" alt="VolcanicDegassing"/> <figcaption>VolcanicDegassing</figcaption></a></figure><figure class="networkpreview"><a title="WaterUnderground" href="/network/water-underground/"><div class="box"> <img height="63" width="147" src="https://blogs.egu.eu/network/water-underground/wp-content/blogs.dir/31/files/2016/08/cropped-1-1-147x63.jpg" class="preview_WaterUnderground" alt="WaterUnderground"/><div class="ribbon"><span>AGU</span></div></div> <figcaption>WaterUnderground</figcaption></a></figure></div></div> <div id="recent-posts-2" class="widget widget_recent_entries"> <h3 class="widgettitle">Recent Posts</h3> <ul> <li> <a href="https://blogs.egu.eu/divisions/cr/2025/03/21/cryosphere-caps-phd-hats-and-the-researchers-that-wear-them-episode-2/">Cryosphere Caps: PhD hats and the researchers that wear them – Episode 2</a> </li> <li> <a href="https://blogs.egu.eu/divisions/cr/2025/03/07/navigating-the-polar-frontier-effects-of-sea-ice-decline-on-shipping-and-sea-routes/">Navigating the polar frontier: exploring the effects of sea-ice decline on shipping and sea routes in the Arctic</a> </li> <li> <a href="https://blogs.egu.eu/divisions/cr/2025/02/21/cryosphere-caps-phd-hats-and-the-researchers-that-wear-them/">Cryosphere Caps: PhD hats and the researchers that wear them – Episode 1</a> </li> <li> <a href="https://blogs.egu.eu/divisions/cr/2025/01/10/field-notes-from-the-chhota-shigri-glacier-a-journey-of-science-and-survival-in-the-himalaya/">Field notes from the Chhota Shigri Glacier: A journey of science and survival in the Himalaya</a> </li> <li> <a href="https://blogs.egu.eu/divisions/cr/2024/12/16/uncovering-antarcticas-hidden-subglacial-lake-network-with-satellite-altimetry/">Uncovering Antarctica’s hidden subglacial lake network with satellite altimetry</a> </li> </ul> </div><div id="archives-2" class="widget 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