QuoteGlobal warming's impact on bodies such as glaciers, ice sheets and oceans, which adjust slowly to rising temperatures, will continue to be felt for centuries or even millennia, according to the report. Sea levels around the world are projected to rise by 2–3 metres over the next 2,000 years, even if temperatures are held in check at 1.5 °C of warming, and up to 6 metres with 2 °C of warming, which would alter entire coastlines currently inhabited by hundreds of millions of people.
https://www.nature.com/articles/d41586-021-02179-1
You have been warned!