Sea Levels show global warming has continued

“Sea level is the yard stick of global warming” (NASA) and sea level rise is accelerating.  This shows that there has been no pause in global warming.  To the contrary, the warming has and is continuing.  Sea level rise is the yardstick of global warming as when the globe warms the oceans rise due to:

  • Ocean water warming and expanding, and
  • Melt water flowing into the oceans from ice in Greenland, the Antarctic and glaciers

(Sea Level Rise: Global Warming’s Yardstick: NASA)

Graph: Sea Levels: 1800 – 2100

  • Red Line: 1800 – 1890: Sea levels based on proxy data, e.g. sediment records
  • Pink Band around red line:  Estimated uncertainty
  • Blue Line: 1880-2009: Sea levels based on tide gauge data
  • Green Line: 1993 – 2012: Sea levels based on satellite observations
  • Dark area: 2013 – 2100: The range of likely future sea levels. The range reflects uncertainty about how glaciers and ice sheets will react to the warming ocean, the warming atmosphere, and changing winds and currents.
  • The orange vertical line at 2100: The range of likely sea level rise by 2100: between 1 and 4 feet.

Graph from “The Third US National Climate Assessment” in 2014
http://www.globalchange.gov/browse/multimedia/past-and-projected-changes-global-sea-level-rise

 

Graph: Sea Level Change since 1993 (NASA: Climate: Indicators)
Graph: Sea Level Change since 1993 (NASA: Climate: Indicators)

The graphs show that Sea level is increasing at an increasing rate.  This indicates that there has been no slow down in global warming.  To the contrary, global warming has and is continuing.

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*** References

Link to “The Third US National Climate Assessment”
http://www.globalchange.gov/browse/reports/climate-change-impacts-united-states-third-national-climate-assessment-0

Graph produced by: The US Global Change Research Program
http://www.globalchange.gov

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