Global Environmental Change, 20 May 2026
In the Qinghai-Tibet Plateau, reducing greenhouse gas emissions could nearly halve the area of permafrost experiencing “high or very high” ground instability by 2090, from about 85% under high emissions to around 50% under low emissions, helping protect critical infrastructure. As frozen ground thaws, it loses its strength and becomes more prone to slumping, collapsing, and eroding. This can damage buildings, roads, railways, pipelines, and other essential community infrastructure. The Qinghai-Tibet Plateau is warming two times faster than the global average, increasing the speed of gradual thaw as well as the scale of abrupt thaw events. The study estimates that infrastructure maintenance costs could reach US$14-16 billion by 2090, equivalent to roughly 8% of the region’s Gross Domestic Product (GDP). Nearly three-fourths of these costs are expected to fall on the Plateau’s most socio-economically disadvantaged regions, highlighting how climate change is likely to widen existing economic inequalities. The findings underscore the need for mitigation alongside targeted adaptation measures to strengthen infrastructure resilience and protect vulnerable communities as permafrost continues to thaw.
By Science Writing Intern Haily Landrigan, Global Outreach Director Amy Imdieke, and ICCI Director Pam Pearson.
Published Jun. 26, 2026 Updated Jun. 26, 2026 9:23 pm