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China
Submarine Sinking Report
Leaked reports from the United Kingdom’s Naval Intelligence have detailed how a Chinese submarine was allegedly sunk by China’s own trap intended for Western submarines in August. The reports state all 55 of the officers and crew onboard the 350-foot (107 m) nuclear submarine were killed after the vessel struck a chain-and-anchor trap and suffered a catastrophic failure of the submarine’s oxygen system. The sinking is reported to have taken place off the coast of Shandong province in the waters of the Yellow Sea. This report comes after a similar unconfirmed report of a submarine being sunk in the Taiwan Strait last month, and after Taiwan made a celebratory reveal of its own domestically developed and built submarine program last week. The Chinese Defense Ministry has denied the reports.
This map depicts the location off China’s Shandong province where a Chinese nuclear submarine allegedly was sunk by one of the Chinese navy’s own traps in August. Click on the map to learn more.
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Graphic Source: Daily Mail
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United States
75,000 Kaiser Employees Strike
75,000 Kaiser Permanente workers from over 40 hospitals across five states began the largest healthcare strike in United States history on Wednesday. Kaiser workers have asked for an increase of the company’s minimum wage to $25 per hour, with a 7 percent increase in the first two years and a 6.25 percent increase in the two years following. The union has also expressed a need for more staff in hospitals, saying that understaffing issues have overworked employees. This issue directly affects patient care, sometimes causing operating room backups and patient care delays. Kaiser Permanente is not the only company to see a large strike this year. Nationwide, there have been 312 strikes involving at least 453,000 workers, many of which have involved healthcare companies.
This map depicts the 40 locations at which employees of healthcare company Kaiser Permanente are striking. Click on the map to learn more.
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Graphic Source: NBC News
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World
CO2 Linked to Ancient Rocks
A study released by the journal Nature provides new insights into the effects of natural rock weathering on atmospheric carbon dioxide levels. The new research conducted by the Department of Earth Sciences at Oxford University clarifies prior understanding that rocks act as sinks for carbon. While rocks can store huge amounts of carbon as they are developed over millions of years through ancient plant and animal remains, they can also release carbon dioxide into the atmosphere as they are worn down by weathering. Areas with high carbon emissions were found in mountainous regions most susceptible to erosion such as the Rocky Mountains, the Andes, and the eastern Himalayas.
This map depicts distribution of rock organic carbon, amounts of the material within 1 m of bedrock, areas of rock denudation, and oxidation fluxes observed in the rock. Click on the map to learn more.
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Q: Alfred Russel Wallace, known as the “Father of Biogeography,” invented the Wallace Line to divide the fauna of what two continents?
A: Asia and Australia
The Wallace Line, boundary between the Asian and Australian faunal regions, was proposed in 1860. To the west of the line, all of the species are similar or derived from species that are found on the Asian mainland. To the east of the line, there are many species of Australian descent, including marsupials (mammals that often have a pouch) and monotremes (mammals that lay eggs). Along the line is a mix of the two, where many species are hybrids. The transitional zone was titled ‘Wallacea’ and is composed of the Malay Archipelago. Wallace’s line is visible geographically when the continental shelf contours are examined. It figures as a deep-water channel that separates the southeastern edge of the Sunda Shelf from the Sahul Shelf. The Sunda Shelf links Borneo, Bali, Java, and Sumatra underwater to the mainland of southeastern Asia, while the Sahul Shelf connects Australia to New Guinea and their adjacent islands. Once continental drift and plate tectonics pulled these lands apart, the large amount of water that separated them drove evolution in different directions for the animal species.
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Q: What explorer-scientist is known for mapping South America, Mexico, and Cuba and developing a theory of the “unity of nature”?
Stay tuned for the answer to today’s question in tomorrow’s DailyGeo.
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