Sea levels around the globe are increasing as ocean temperature warm and cause the water to expand in volume, along with land-based ice melting and increasing the amount of water in the ocean. Rising sea levels not only make coastal living more dangerous from storm flooding and erosion, but also cause significant habitat loss and impacts to ecosystems. Satellites work in conjunction with tide gauges to give us both a global and local perspective of changes in sea level. We can see the overall trends in satellite-based maps, along with accurate hour-by-hour changes at the local level from gauges.

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  Indicators of the Planet - Sea Level Rise
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