From this passage, it can be concluded that ____.
Between the years 0 and 1900 A.D., global sea level variation was likely between 7 cm and 11 cm, or up to about four inches. Between 1000 and 1400, the levels decreased an average of one fifth of a millimeter per year, or less than a thousandth of an inch, coinciding with a slight global temperature drop, [scientists] estimated.
They also concluded based on their reconstruction that it is extremely likely that the sea-level rise in the 20th century – 14 cm, or 5.5 inches – was faster than during any previous century since at least 800 B.C.
After creating a model to relate the rate of sea-level change to the average temperature, the researchers estimated the human contribution to 20th-century sea-level rise, concluding that it probably account for more than half of that increase.
Retrieved from: http://www.world-science.net/othernews/160223_sealevel.htm
global warming from human activity is driving a rise in sea level that will continue to accelerate unless global warming is addressed
scientists believe the sea level will drop again when the Earth’s temperature cools
there is no way to ensure the data about sea levels in the year 200 A.D. is accurate
sea level fluctuations are a normal part of Earth’s history
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