1. Sea Level
RATE OF CHANGE
SATELLITE DATA: 1993-PRESENT
Data source Satelite sea level observations
Credit: NASA Goddard Space Flight Center
1 3.3
millimeters per year
100
BO
60
40
20
0
1995
2000
2010
2015
2020
2005
YEAR
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This satellite data show the change in Earth's global sea level since 1993. Roll over the chart to see the various data points. For more Earth
signs Vs NASA Global Climate Change website
The total amount of water on Earth isn't increasing, but the volume of liquid that fills the ocean
basins is growing, raising the elevation of the sea's surface and spilling ocean water onto
low-lying land. The extra volume of seawater comes from two places: Clearly, the melting of ice