Category Archives: Sea Level

Carbon dioxide plays no role in sea-level changes

“Mörner studied the Kattegat Sea between Denmark and Sweden. In this region sea level has not increased as announced by climate alarmists, but instead decreased. The actual oceanic increase in the past 125 years can be estimated as modest at 0.9 mm per year. “ click here

Antarctic ice sheet melt not so alarming after all

“So, if the Antarctic ice sheet weighs 26,500,000 gigatonnes or 26500000000000000 tonnes

252 billion tonnes is 252 gigatonnes

Really simple math says:  252gt/26,500,000gt x 100 = 9.509433962264151e-4 or 0.00095% change per year

But this is such a tiny loss in comparison to the total mass of the ice sheet, it’s microscopic…statistically insignificant.” click here

Rising sea level acceleration manufactured

“Let me close by saying that I think that it is very bad scientific practice to splice together a terrestrial and a satellite record unless they agree well during the period of overlap. In this case, they disagree greatly over the period of record. For the detrended values over the period of overlap (1993-2013), the R^2 value is 0.01 and the P-value is 0.37 … in other words, there is absolutely no significant correlation between the satellite data and the C&W estimate.” click here

Sea level rise nothing out of the ordinary

New York City will soon be underwater, Not!

Nils-Axel. The Illusive Flooding of New York CityJournal of Environmental Sciences Volume 1, Issue 2 

In media we often hear frightening stories of a sea in the progress of rapidly rising and flooding low-lying coasts and islands, and coastal cities like New York. This paper is devoted to a scientific evaluation of evidence-based facts versus fake news that violates facts and physical laws. It is a serious mistake to claim that global sea level is in a phase of rapid rise. Observationally based facts document a present changes in absolute (eustatic) sea level ranging between ±0.0 and +1.0 mm/yr. This poses no threats what so ever. In New York City, sea level is rising at a rate of +2.84 mm/yr, which would imply an additional rise in sea level by 23.3 cm by 2100, a modest rise that can be handled without problems. There also occur statements that sea level may raise by 1 m or more by 2100. All such claims represent fake news that does not concur with observational fact and violates physical frames of realism.

Pacific and Indian ocean atoll islands stable or growing in size

Duvat, V. K. E. (2018). A global assessment of atoll island planform changes over the past decades. Wiley Interdisciplinary Reviews: Climate Change, e557. doi:10.1002/wcc.557

Over the past decades, atoll islands exhibited no widespread sign of physical destabilization in the face of sea-level rise. A reanalysis of available data, which cover 30 Pacific and Indian Ocean atolls including 709 islands, reveals that no atoll lost land area and that 88.6% of islands were either stable or increased in area, while only 11.4% contracted. Atoll islands affected by rapid sea-level rise did not show a distinct behavior compared to islands on other atolls. Island behavior correlated with island size, and no island smaller than 10 ha decreased in size. This threshold could be used to define the minimum island size required for human occupancy and to assess atoll countries and territories’ vulnerability to climate change. Beyond emphasizing the major role of climate drivers in causing substantial changes in the configuration of islands, this reanalysis of available data indicates that these drivers explain subregional variations in atoll behavior and within-atoll variations in island and shoreline (lagoon vs. ocean) behavior, following atoll-specific patterns. Increasing human disturbances, especially land reclamation and human structure construction, operated on atoll-to-shoreline spatial scales, explaining marked within-atoll variations in island and shoreline behavior. Collectively, these findings highlight the heterogeneity of atoll situations. Further research needs include addressing geographical gaps (Indian Ocean, Caribbean, north-western Pacific atolls), using standardized protocols to allow comparative analyses of island and shoreline behavior across ocean regions, investigating the role of ecological drivers, and promoting interdisciplinary approaches. Such efforts would assist in anticipating potential future changes in the contributions and interactions of key drivers.

Coastlines are expanding worldwide; Sea level not rising

Arjen Luijendijk, Gerben Hagenaars, Roshanka Ranasinghe, Fedor Baart, Gennadii Donchyts, Stefan Aarninkhof. The State of the World’s Beaches. Scientific Reports 8, 6641 (2018)

Coastal zones constitute one of the most heavily populated and developed land zones in the world. Despite the utility and economic benefits that coasts provide, there is no reliable global-scale assessment of historical shoreline change trends. Here, via the use of freely available optical satellite images captured since 1984, in conjunction with sophisticated image interrogation and analysis methods, we present a global-scale assessment of the occurrence of sandy beaches and rates of shoreline change therein. Applying pixel-based supervised classification, we found that 31% of the world’s ice-free shoreline are sandy. The application of an automated shoreline detection method to the sandy shorelines thus identified resulted in a global dataset of shoreline change rates for the 33 year period 1984–2016. Analysis of the satellite derived shoreline data indicates that 24% of the world’s sandy beaches are eroding at rates exceeding 0.5 m/yr, while 28% are accreting and 48% are stable. The majority of the sandy shorelines in marine protected areas are eroding, raising cause for serious concern.