Sea Level Rise Philippines 2024 Predictions. Relative sea level (rsl) change is the change in local mean sea surface height relative to the sea floor, as measured by instruments that are fixed to the earth’s surface (e.g., tide gauges). In its 2019 report, the ipcc projected (chart above) 0.6 to 1.1 meters (1 to 3 feet) of global sea level rise by 2100 (or about 15 millimeters per year) if greenhouse gas emissions remain at high rates (rcp8.5).
Scientists have found that global mean sea level—shown in the line plot above and below—has risen 10.1 centimeters (3.98 inches) since 1992. Relative sea level (rsl) change is the change in local mean sea surface height relative to the sea floor, as measured by instruments that are fixed to the earth’s surface (e.g., tide gauges).