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Sea level rise is caused primarily by two factors related to global warming: the added water from melting ice sheets and glaciers, and the expansion of seawater as it warms. The first graph tracks the change in global sea level since 1993, as observed by satellites.
Chart the changes in Earth’s water and ice that most clearly reveal global sea level rise. Learn more about the different causes of sea level change and the scientific background of observations and projecting sea level.
Mar 21, 2024 · Global average sea level rose by about 0.3 inches (0.76 centimeters) from 2022 to 2023, a relatively large jump due mostly to a warming climate and the development of a strong El Niño. The total rise is equivalent to draining a quarter of Lake Superior into the ocean over the course of a year.
Global mean sea level provides an integrative measure of the state of the climate system, encompassing both the ocean and cryosphere (ice covered portions of Earth), and it can be viewed as an important indicator of what is happening to the climate in the present and what may happen in the future.
Apr 19, 2022 · Published April 19, 2022. Global average sea level has risen 8–9 inches (21–24 centimeters) since 1880. In 2022, global average sea level set a new record high—101.2 mm (4 inches) above 1993 levels.
Apr 10, 2023 · EXPLAINER. Sea levels are rising at an extraordinary pace. Here's what to know. Seas are predicted to rise a foot by 2050, regardless of how much global carbon emissions can be reduced. Why is...
Aug 10, 2017 · Home. News & Features. Tracking sea level rise ... and fall. 1. What is sea level? 2. Is sea level changing? 3. Are changes in sea level related to climate change? 4. How do we measure sea level? 5. How can sea level changes affect me? What is sea level? And why is the sea not exactly level? Is sea level changing?
