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California Rushes To Prepare For Massive 'Kelvin' Wave, Predicted Sea Level Rise

1 month 1 week ago
fjo3 shares a report from The Guardian: Communities across California are rushing to prepare for the imminent arrival of the so-called "Kelvin wave," a massive underwater band of warm water threatening to inundate swaths of the vast North American shoreline. The wave is nearing southern California and expected to reach the San Francisco Bay Area by early October, as it crawls toward Alaska. Waters could rise by a foot along the California coast, according to scientists, who have warned that this could dramatically double the 8-12in rise in sea levels already caused by climate change over the last century. The Kelvin wave doesn't climb and crash like a typical ocean wave; rather, it swells the tides from beneath the surface. It's effectively a massive slosh of warm water, driven by El Nino conditions, that moves across the Pacific before colliding with the South American coastline and surging north. It also won't transport water in the way a tsunami might, but creates conditions that enable higher sea levels to linger. On their own, Kelvin waves aren't always hazardous, according to Mike Jacox, a research oceanographer with the National Marine Fisheries Service, though they can reduce the growth of phytoplankton that form the base of the marine food web. "But when there are very high tides or storm surges, their effects can be amplified," he said. If the rising waters coincide with other climatic events, such as rainstorms and high tides, the phenomenon could swallow beaches, chew away bluffs and coastlines, and submerge streets, homes and businesses. "This coming Kelvin wave is just the beginning," said Dr Jonathan Warrick, a research geologist at the US Geological Survey. "The thing to look out for is what will happen in January, February and March -- that's when we get the biggest storms, we get our largest waves and we have some very large tides." If these events align, their effects will compound, setting the stage for a tumultuous winter. Together, Warrick said, the systems will pack a far bigger punch. "When it comes to these storms and the tides," he said, "we really are kind of rolling the dice."

Read more of this story at Slashdot.

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Amazon's New Kindle Accessories Bring Back Physical Controls

1 month 1 week ago
Alongside a refreshed Kindle lineup, Amazon today introduced two accessories that bring physical buttons back to its touchscreen e-readers. The $34.99 Kindle Click is a Bluetooth remote that lets readers turn pages and adjust brightness without touching the device, while a new $79.99 magnetic cover is available for select Paperwhite and Colorsoft models. GeekWire reports: Amazon says [the Kindle Click is] meant for reading under the covers, on a treadmill, or on an airplane tray table. It's available for preorder and ships Oct. 28. It recharges over USB-C, includes side buttons for adjusting brightness, and works with Kindles released in 2024 or later. The company cited BookTok as an inspiration, Bloomberg reported, a reference to the community of readers on TikTok who post book recommendations, reviews and their reading setups. Kindle fans there have been showing off third-party clickers for years. Amazon is also bringing back physical page-turn buttons, which disappeared when the company discontinued the Kindle Oasis in 2024. This time they come in a separate $79.99 magnetic cover, which works only with the new Signature Edition versions of the Paperwhite and Colorsoft. The new Kindles have screens that sit flush with the edges, colors that wrap around to the front, and optional aluminum housings. They also have user-replaceable batteries to comply with European Union rules, Amazon told The Verge. The base Kindle starts at $149.99, or $189.99 in aluminum. The Paperwhite starts at $199.99 and the Colorsoft at $289.99, with Signature Editions at $249.99 and $319.99. Those prices match what Amazon has charged since August, when it raised Kindle prices by $40 to $50, citing memory and storage costs. The base Kindle is available now. The Paperwhite and Colorsoft ship Oct. 28.

Read more of this story at Slashdot.

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