No Accelerating Sea Level Rise
- The National Oceanographic and Atmospheric Administration (NOAA) has updated its coastal sea level tide gauge data which continue to show no evidence of accelerating sea level rise.
- In contrast to the steady but modest rise in sea level revealed in long-term measurements, the United Nations Intergovernmental Panel on Climate Change (IPCC) speculates that sea level will almost immediately begin rising significantly more than in the past and present.
Monthly mean sea-level data for each city, signified by the blue lines, and the 95% Prediction Intervals
- Ceuta, Spain
- Mediterranean Sea
- If the current trend continues for the next century, sea level in Ceuta will rise only three inches. This is in sharp contrast to the 10-foot global rise in sea levels recently projected by former NASA scientist James Hansen.
- Honolulu, Hawaii
- Pacific Ocean
- Hawaii, like some other regions, can see significant year-to-year fluctuations in sea level because of global oceanic currents or local plate tectonic movements. The sea level around Honolulu is projected to rise a mere 5.6 inches in the next 100 years, once again with no correlation to CO2 levels.
There has been no dramatic sea level rise in the past century, and projections show no dramatic rise is likely to occur in the coming century.
- There is no correlation between CO2 concentrations in the atmosphere and rising sea level, and no evidence to indicate the rate of rise or fall in any of the areas studied will be substantially different than has been the case over the past many decades.
Survey from three sources
- 1958-present data are from measurements at the Mauna Loa Observatory in Hawaii, at 3,400 meters altitude in the Northern subtropics
- 1850-1958 data is from ice core data
- 1800-1850 CO2 data from a different ice core set
- Sea-level measurements for the ten coastal city graphs represent monthly data points compiled from the National Oceanic and Atmospheric Administration (NOAA) and the Permanent Service for Mean Sea Level (PSMSL)
- The database from which the graphs are drawn consists of data from 375 long-record tide-gauges around the globe, selected by NOAA for trend analysis
REFERENCES
- Patrick J. Michaels, "2016 Record Warm Surface Temperatures: The Party's Over!" Cato at Liberty, August 10, 2017
- Douglas Stanglin, "Gore: Polar Ice Cap May Disappear By Summer 2014," USA Today, December 14, 2009
- Steven E. Koonin, "Climate Science Is Not Settled," The Wall Street Journal, September 19, 2014
- Brian Clark Howard, "Prediction of Rapid Sea Level Rise Won't Change Global Climate Talks," National Geographic, July 21, 2015
- Simone Fiaschi and Shimon Wdowinski, "The Contribution of Land Subsidence to the Increasing Coastal Flooding Hazard in Miami Beach," Miami, FL: Rosenstiel School of Marine and Atmospheric Science, no date
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