地理漫步·世界地理英语30篇（8）
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Permafrost Thaws Across Arctic Landscapes
永久冻土在北极地貌中消融
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Permafrost is frozen ground that stays cold for two or more years.永久冻土是持续冻结两年或更久的土壤。
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It covers nearly one-quarter of the Northern Hemisphere's land area.它覆盖了北半球近四分之一的陆地面积。
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Thawing permafrost releases carbon and changes soil stability.冻土融化会释放碳，并改变土壤稳定性。
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Rivers shift course as banks collapse from melting ice.河岸因冰层融化而坍塌，导致河流改道。
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Buildings and roads sink where once-solid ground softens.原本坚实的地面变软，致使建筑物和道路下沉。
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Scientists map thaw zones using satellite and ground sensors.科学家利用卫星和地面传感器绘制冻土融化区域。
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This change reshapes ecosystems and human infrastructure alike.这一变化同时重塑生态系统与人类基础设施。
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Arctic landscapes now hold visible scars of warming ground.北极地貌如今清晰可见地面变暖留下的伤痕。