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The global average sea level has risen about 25 centimetres (9.8 in) since 1880. [1] Sea surface height change from 1992 to 2019: Blue regions are where sea level has gone down, and orange/red regions are where sea level has risen (the visualization is based on satellite data).
Baart et al. (2012) show that it is important to account for the effect of the 18.6-year lunar nodal cycle before acceleration in sea level rise should be concluded. [25] Based on tide gauge data, the rate of global average sea level rise during the 20th century lies in the range 0.8 to 3.3 mm/yr, with an average rate of 1.8 mm/yr. [26]
Satellite data are based solely on measured sea level, while the long-term tide gauge data include a small correction factor because the size and shape of the oceans are changing slowly over time. (On average, the ocean floor has been gradually sinking since the last Ice Age peak, 20,000 years ago.)
A chilling animation from Nasa shows how far the sea level has risen in the past 30 years. “As the planet warms and polar ice melts, our global average sea level is rising,” Nasa wrote ...
Using peer-reviewed sea level rise projections and local elevation from Climate Central’s models, the findings show compelling visuals that paint a stark contrast between the world as we know it ...
The report says if global average temperatures settle at 2 degrees Celsius above the preindustrial baseline, the planet could be committed to more than 40 feet of sea-level rise — a melt that ...
This is a list of countries and territories by their average elevation above sea level based on the data published by Central Intelligence Agency, [1] unless another source is cited. The list includes sovereign states and self-governing dependent territories based upon the ISO standard ISO 3166-1 .
The rate of global sea level rise is speeding up dramatically as temperatures continue to rise due to climate change, a new report finds, and now poses “a major threat to many millions” of ...