• Guest post: The challenges in projecting future global sea levels Multiple Authors 02.17.26Multiple Authors 17.02.2026 | 8:00amIt is well understood that human-caused climate change is causing sea levels to rise around the world. • Since 1901, global sea levels have risen by at least 20cm - accelerating from around 1mm a year for much of the 20th century to 4mm a year over 2006-18. • Sea level rise has significant environmental and social consequences, including coastal erosion, damage to buildings and transport infrastructure, loss of livelihoods and ecosystems. • The Intergovernmental Panel on Climate Change (IPCC) has said it is “virtually certain” that sea level will continue to rise during the current century and beyond. • But what is less clear is exactly how quickly sea levels could climb over the coming decades. • This is largely due to challenges in calculating the rate at which land ice in Antarctica - the world’s largest store of frozen freshwater - could melt.

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  • Guest post: The challenges in projecting future global sea levels Multiple Authors 02.17.26Multiple Authors 17.02.2026 | 8:00amIt is well understood that human-caused climate change is causing sea levels to rise around the world. Since 1901, global sea levels have risen by at least 20cm - accelerating from around 1mm a year for much of the 20th century to 4mm a year over 2006-18. Sea level rise has significant environmental and social consequences, including coastal erosion, damage to buildings and transport infrastructure, loss of livelihoods and ecosystems. The Intergovernmental Panel on Cli

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