A challenge for coastal conservation over the next decades is to predict and then effectively manage the outcomes of ongoing climate change in the context of the Anthropocene. Paraglacial coasts are those on or adjacent to present or formerly glaciated terrain and which are still influenced by glacigenic processes. Ongoing response of paraglacial coasts to the influences of glaciation can give rise to diverse regional-scale coastal responses that may variously amplify or suppress any effects caused by global climate change. Here we provide insight into the richness of landforms and coastal system responses from two contrasting paraglacial environments, in Svalbard where glaciers are still present but are actively retreating, and in Ireland where late Pleistocene glaciers melted away around 14,000 years ago. Svalbard and Ireland exhibit different paraglacial coastal responses which reflect long-term variations in sediment supply from inland source areas to the coast, and variations in sediment residence times and storage areas within the coastal zone. The conservation of paraglacial coasts in the context of Anthropocene global warming requires an understanding of regional glacial history and longer term coastal responses to paraglacial relaxation.

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冰河沿岸：人类世的沿海保护面临的挑战

在未来的几十年中，海岸保护面临的挑战是预测并有效地管理人类世间正在发生的气候变化的后果。滑冰海岸是指现在或以前的冰川地形上或附近的那些海岸，仍然受成冰过程的影响。冰河沿岸对冰川作用的持续响应会引起区域范围的沿海响应，这些响应可能会以各种方式放大或抑制全球气候变化所造成的任何影响。在这里，我们提供了从两种截然不同的冰川期环境出发的丰富地形地貌和沿海系统响应的信息，在斯瓦尔巴特群岛仍存在冰川，但正在积极退缩，在爱尔兰，晚更新世冰川融化了大约14,000年前。斯瓦尔巴特群岛和爱尔兰表现出不同的冰期沿海反应，这反映了从内陆源区到沿海的沉积物供应的长期变化，以及沿海区内沉积物的停留时间和存储区域的变化。在人类世全球变暖的背景下，对冰川下海岸的保护需要了解区域冰川历史以及对冰川下松弛的长期沿海反应。