Even if the world stopped emitting greenhouse gases tomorrow, ocean levels will continue to rise and keep rising for centuries or millennia. Since the 1880s, mean sea level globally has already risen by 16cm to 21cm (6-8in). Half has happened over the past three decades. It’s accelerating too: the ocean rose more than twice as fast (4.62mm a year) in the most recent decade (2013-22) than it did in 1993-2002, the first decade of satellite measurements, when the rate was 2.77mm a year. Countries from Bangladesh to China, India and the Netherlands, with large coastal populations, will be at risk. Megacities on every continent will face serious impacts, including Lagos, Bangkok, Mumbai, Shanghai, London, Buenos Aires and New York.
www.theguardian.com/environment/2023/jun/26/its-absolutely-guaranteed-the-best-and-worst-case-scenarios-for-sea-level-rise