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Below are points of evidence supporting the fact that sharks are a threat to undersea cables. EVIDENCE 1: The first report of sharks attacking cables came from the Canary Islands in 1985, when sharks' teeth were found embedded in an experimental cable. I found the report in an old news paper. According to a report by the United Nations Environment ...


37

Sharks are an extremely small threat to undersea cable in regards to others causes as shown in the graphic below (from a report cited in @georgechalhoub's answer). Data Proportion of cable faults by cause, from a database of 2,162 records spanning 1959–2006 Fishing 44.4%; Anchor 14.6%; Component 7.2%; Abrasion 3.7% ; Geological 2.6% ; Dredge/drill/...


33

The article does not identify the precise location, but there are plenty of apparent subsea tracks resembling those left by tank treads easily identifiable on Google maps. To take an arbitrary example with round co-ordinates, try 35N, 132W between California and Hawaii These are artefacts cause by high resolution scanning by ships (so typically linear ...


22

Ah, not only are there liars for Jesus, be there are liars for Mohamed... I will note that the facebook page claims that Cousteau converted to islam. That is false. This page (in French) addresses that. Now, about the specific claims in oceanography that there is no mixing, this is patently false. The Straits of Gibraltar do not provide any sort of ...


19

Yes. Drinking straws are a relatively minor source of oceanic plastic pollution. That is in perspective: Plastic drinking straws are a big problem in itself. But in comparison that problem is still a much smaller problem than commonly perceived or claimed to be. Other sources of plastics for ocean pollution are bigger in numbers, weight, direct or indirect ...


19

No, the Great Barrier Reef is not dead. According to Exploring the hidden shallows: extensive reef development and resilience within the turbid nearshore Great Barrier Reef (2016): Mean coral cover on Australia’s Great Barrier Reef (GBR) has reportedly declined by over 15% during the last 30 years. Climate change events and outbreaks of coral disease ...


18

Not directly, but there was an unusual tidal event in the preceding months that may have contributed to the unusual number of icebergs in the shipping lanes in Spring 1912. “Of course, the ultimate cause of the accident was that the ship struck an iceberg. The Titanic failed to slow down, even after having received several wireless messages warning of ...


15

No, there isn't any pattern to the waves. In fact, the wave are defined as "with random periods/frequencies", as you can see in this paper of modeling of sea waves and sea states, this is mainly due to how the waves are generated due action of wind, also as is described here, there, this webpage (more easy to understand), another page or in the extend ...


12

As far as I know, nobody is claiming that ocean acidification will result in the pH going lower than 7, so this is at best a straw man. The IPCC project a reduction by 0.3 - 0.4 units by 2100 (e.g. AR4 WG1 report) (current pH is about 8.14). The pH does not need to fall as far as 7 for there to be substantial impacts (see the three sources given for ...


11

The question about the extent of octopuses being violent is off-topic here. Have octopuses have fatally envenomated humans? Yes. In 1954, Kirk Dyson-Holland was killed after picking up (what was later identified as) a blue-ringed octopus. Another man died in 1962. In Australia, octopus attacks are rarely seen in hospitals and rarely cause deaths in scuba-...


8

According to Garbage Land: On the Secret Trail of Trash : In 2002, International Coastal Cleanup volunteers in 117 countries collected 1.8 million cigarette butts and cigar tips, representing 31 percent of all trash items. ... In 2002, International Coastal Cleanup had collected more than 8.2 million pounds of refuse, including 16,554 condoms, 16,144 ...


5

Short Answer NO, the wave weather is called "superposition of waves with random periods/frequencies and directions" for a reason. Long Answer This answer was already addressed, but with a 9 instead a 7 here in Skeptics SE, the remarkable part is... (notes in bold) In the fetch, many different groups of waves of varying wavelength are generated and ...


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