{"id":316968,"date":"2024-04-06T09:55:06","date_gmt":"2024-04-06T07:55:06","guid":{"rendered":"https:\/\/climatescience.press\/?p=316968"},"modified":"2024-04-06T09:55:09","modified_gmt":"2024-04-06T07:55:09","slug":"sea-level-rise-alarm-the-coastlines-of-13000-studied-islands-net-grew-seaward-from-2000-2020","status":"publish","type":"post","link":"https:\/\/climatescience.press\/?p=316968","title":{"rendered":"Sea Level Rise Alarm? The Coastlines Of 13,000 Studied Islands Net GREW Seaward From 2000-2020"},"content":{"rendered":"\n
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From NoTricksZone<\/a><\/p>\n\n\n\n

By\u00a0Kenneth Richard<\/a><\/em><\/p>\n\n\n\n

The sea level rise experienced in recent decades was supposed to lead to shrinking shorelines and inundated coasts. Instead, satellite observations reveal the globe\u2019s island coasts expanded seaward (net) by 402 km\u00b2 since 2000.<\/strong><\/p>\n\n\n\n

In a new study<\/a><\/strong>, over 13,000 islands were assessed for coastal change over the last three decades (1990-2020). Only 12% of these islands experienced significant shoreline change during this period. Thus, approximately 88% of the islands had stable coasts \u2212 neither substantial erosion or accretion.<\/p>\n\n\n\n

About 6% of these 13,000+ islands experienced coastline expansion (accretion), while 7.5% lost coastal land area (erosion). The scientists point out that, for the islands experiencing coastal erosion in recent decades, sea level rise was not a primary or predominant causal factor. This is \u201ccontrary to initial assumptions.\u201d<\/p>\n\n\n\n

\u201cMoreover, the data results suggest that sea-level rise has not been a widespread cause of erosion for island shorelines in the studied region. Presently, it is considered one of the contributing factors to shoreline erosion but not the predominant one.\u201d<\/em><\/p>\n\n\n\n

\u201cContrary to initial assumptions, our empirical data does not conclusively link the widespread erosion of island shorelines primarily to historical sea-level rise, suggesting that human activities might mask the effects of sea-level rise.\u201d<\/em><\/p>\n\n\n\n

Somewhat consistent with the alarming sea level rise narrative propagated by anthropogenic global warming (AGW) activists, there\u00a0was<\/em>\u00a0indeed a net loss (-259.33 km\u00b2) of coastal land area for the 13,000+ islands studied in the decade spanning 1990 to 2000. But then, \u201cin the subsequent decades, the trend reversed, with net increases of 369.67 km\u00b2 from 2000 to 2010 and 32.67 km\u00b2 from 2010 to 2020.\u201d<\/p>\n\n\n\n

Added together, in the last two decades the globe\u2019s island coasts net grew seaward by 402.33 km\u00b2 from 2000-2020, and coasts grew by a net 157.21 km\u00b2 for the entire 30-year period (1990-2020).<\/p>\n\n\n\n

\u201cOver the past three decades, the entire region experienced a cumulative increase in land area of 157.21 km\u00b2 across more than 13,000 islands.\u201d<\/em><\/p>\n\n\n\n

\u201c\u2026over the past 30 years, fewer islands experienced landward erosion compared to those undergoing seaward accretion.\u201d<\/em><\/p>\n\n\n\n

Sea level rise thus cannot be an explanation for the contradictory three decades of net coastal seaward expansion observations.<\/p>\n\n\n\n

But if the recent decades of sea level rise trends cannot even be considered a primary or predominant factor contributing to coastal\u00a0erosion<\/em>\u00a0either, then the alarmist sea level rise narrative necessarily disintegrates under the weight of the evidence.<\/p>\n\n\n\n

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Image Source:\u00a0Zhang et al., 2024<\/a><\/strong><\/figcaption><\/figure>\n\n\n\n
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