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follow TwoScoopsPlissken 2018 Feb 9, 5:20pm
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The Pacific nation of Tuvalu—long seen as a prime candidate to disappear as climate change forces up sea levels—is actually growing in size, new research shows.A University of Auckland study examined changes in the geography of Tuvalu's nine atolls and 101 reef islands between 1971 and 2014, using aerial photographs and satellite imagery.It found eight of the atolls and almost three-quarters of the islands grew during the study period, lifting Tuvalu's total land area by 2.9 percent, even though sea levels in the country rose at twice the global average.Co-author Paul Kench said the research, published Friday in the journal Nature Communications, challenged the assumption that low-lying island nations would be swamped as the sea rose."We tend to think of Pacific atolls as static landforms that will simply be inundated as sea levels rise, but there is growing evidence these islands are geologically dynamic and are constantly changing," he said."The study findings may seem counter-intuitive, given that (the) sea level has been rising in the region over the past half century, but the dominant mode of change over that time on Tuvalu has been expansion, not erosion."It found factors such as wave patterns and sediment dumped by storms could offset the erosion caused by rising water levels.
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anon_7e933 saysYes40 years, the sea level hasn't changed at the same places I've gone to.How's that?My guess is your eyes are unable to tell the change as it's small
Yes40 years, the sea level hasn't changed at the same places I've gone to.How's that?
compared to the changes due to tidal forces.
Sea levels aren't.
Who said anything about tidal changes?
Which is why we have scientists who actually use tools to measure sea level and don't rely on their eyes.
anon_10ddb saysWho said anything about tidal changes? I did.
reat, so now we can add wind, causing higher water along with tidal changes, which caused the erosion and disappearance of those islands.Makes perfect sense, thanks for clarifying that. The Alarmists aren't going to be happy though, how can they blame the disappearing islands on melting ice? Their narrative was just wrecked, again.
I don't think you are understanding the point. It's not that tidal forces have changed over time. It's that in order to measure a difference in sea levels, you have to have a baseline to measure against. But the baseline sea level changes due to tidal forces so you and your naked eye will never know what the baseline is that you are measuring against, and will never be able to tell if it has risen or fallen.