Sea Level Rise Confirmed on 97% of World's Coastlines; '100-Year Floods Now Occur Every 8 Years'

Sea level rise, a direct consequence of human activity, has become a pervasive reality, impacting nearly all of the world's coastlines. New research indicates this global phenomenon is dramatically accelerating the occurrence of extreme flooding.

Scientists analyzed data from tide gauges worldwide and combined it with climate model simulations. Their findings, published in the journals Advanced Science and Nature Climate Change, confirm that human-induced sea level rise is evident at 97% of the 519 tide gauge locations studied. Between 2000 and 2018, human activities accounted for about 58% of daily sea level rise.

The study also highlights a stark increase in coastal flooding. The frequency of extreme sea level events, defined as those that once occurred only once a century, has surged. These once-in-a-century floods are now happening on average every eight years, underscoring the urgent and escalating threat to coastal communities globally.

This research quantifies the impact of climate change on coastal regions, demonstrating a clear link between human actions and the heightened risk of devastating floods. The findings serve as a critical warning about the accelerating consequences of global warming.