For more:
https://news.cgtn.com/news/2022-08-01/China-says-military-won-t-sit-back-if-Pelosi-visits-Taiwan--1c95ZazYeFa/index.html
#China will take firm and strong countermeasures to safeguard its sovereignty and territorial integrity, said Chinese Foreign Ministry spokesperson Zhao Lijian on Monday, warning that the Chinese military will not sit back if U.S. House of Representatives Speaker Nancy #Pelosi visits Taiwan. His remarks came amid the high tensions across the #Taiwan Straits. Pelosi's Asia trip schedule, announced on Sunday, includes Singapore, Malaysia, South Korea and Japan with no mention of Taiwan.
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Main Sources:
DC Flood Risks https://www.washingtonpost.com/climate-environment/interactive/2023/dc-low-lying-city-flood-risks/
Potomac Basin https://potomacdwspp.org/resources/about-the-potomac-basin/
Flood proofing Federal Triangle https://www.youtube.com/watch?v=goFC7H8DN5o
CBS: Rising Waters in Tidal Basin https://www.youtube.com/watch?v=CPLedIobHRw
New Flood Wall https://youtu.be/XMFcJ_ttSZI?si=1clHozSB2nlmKnV4&t=62
DC Water's Clean Rivers PDF https://www.dcwater.com/sites/default/files/project/2016-12/presentations/2024-04-10%20WABA%20%28WPP%29%20Briefing%20Presentation.pdf
DC Clean Rivers video https://www.youtube.com/watch?v=bCOXuWgPnXw
Lady Bird Tunnel Boring Machine https://youtu.be/J5oEqtpB1go?si=1LgeBHozH_k9x1_u&t=69
Tour of Blue Plains Wastewater Treatment Plant https://youtu.be/Rm_iyxwAx94?si=NCL1T0C_B-RLsOCY
That nightmare scenario haunted the team excavating the 75 foot-deep site for the National Museum of African American History and Culture after they accidentally hit the aquifer under the National Mall. If too much water gushed into their giant pit, they could destabilize their neighbor, the great structure just a few hundred feet away, causing it to shift or even fall over.
So they acted quickly to pump water back in to stabilize it. When their instruments showed the ground pressure holding firm, they plugged up the leak and focused on modifying the museum’s design to mitigate this new risk.
To maximize its exhibit space, while limiting its above ground footprint, the museum’s first four levels are underground. To keep them dry, visitors safe, and the 91,000-ton monument next door standing tall, they encased the subterranean levels in two walls, with eight feet of porous stone fill in between, to catch and hold any water that might penetrate the foundation.
It was an ingenious solution, but for builders in the federal District of Columbia, dealing with a shallow water table is nothing new.
When President George Washington chose this idyllic spot to be the national capital, it was a land of farms and woods, rich with surface water. Small brooks trickled into streams, like Rock Creek. Marshes and tidal flats swelled and receded as the 14,700 square-mile Potomac basin drained through the District and mixed with the tidal flow of the Chesapeake Bay–the largest estuary in the United States. But as the city's boulevards and grand buildings were constructed over the past two-and-a-half centuries, 70% of these natural streams have disappeared: diverted into sewers, culverts, or filled in and paved over.
Tiber Creek flowed through what has become the National Mall. First, it was converted into a canal, and then piped into sewers buried beneath Federal Triangle. Today, this group of large neoclassical buildings - between Constitution and Pennsylvania Avenues - is home to numerous large government agencies. It’s also the lowest point in downtown.
In 2006 it rained heavily for an entire week, leaving the Triangle submerged, causing tens of millions of dollars in damage and disrupting government operations.
It wasn’t the first time this has happened here.
Experts fear the most extreme storm would put the American History Museum under 16 feet of water.
Engineers have taken steps to protect the buildings, like installing temporary barriers, retractable gates, and raising core utilities out of their basements.
There’s even now a temporary levee that’s trucked over and dropped in along the Mall for added protection ahead of big storms.
But throughout the rest of DC, an estimated 16,000 homes and businesses have had little protection from flooding when it rains.
Some residents have water gush in from the street, others confront it bubbling up from their toilets when old sewers overflow and long-buried “zombie” streams gurgle back to life.
On the southernmost edge of the district, along the Potomac, another major flooding threat looms. Over the past century, the waterline has effectively risen four feet, a combination of sea level rise and the land sinking under the weight of development.
I’ve definitely noticed the water getting a little higher every year. The area where the water is is actually a portion of the seawall that has settled over the years.
During high tide, when the ocean pushes the Chesapeake Bay further up the Potomac, 250 million gallons of river water enter the Tidal Basin. But it was constructed in 1897, it can no longer contain the river at high tide, causing the walking paths around the monuments and iconic cherry trees to flood twice a day like clockwork.
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,1,La cheffe des représentants américains, Nancy Pelosi, a commencé vendredi 29 juillet son voyage en Asie, plus précisément à Singapour, en Malaisie, en Corée du Sud et au Japon, selon un communiqué de son bureau. Le communiqué n'a pas confirmé si ce déplacement pourrait inclure une étape à Taiwan, comme Pelosi l'avait prétendu. Sa visite potentielle à Taiwan a naturellement provoqué à la fois l'indignation de la Chine et une vive polémique aux États-Unis. Nous parlons aujourd'hui de ce voyage éventuel controversé avec nos deux invités, qui nous rejoignent par visio-conférence, Wu Zexian, commentateur de CGTN Français, et Toumert Alkhalloufi, directeur du programme de coopération éducative à l'Université des affaires étrangères de Chine. #EtatsUnis
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,1,La posible visita de la presidenta de la Cámara de Representantes de Estados Unidos, Nancy Pelosi, a Taiwan en agosto ha suscitado una fuerte oposición por parte de Beijing y ha aumentado las preocupaciones de seguridad. El Ministerio de Relaciones Exteriores de China afirma que este gesto sólo podría interpretarse como una ruptura de Estados Unidos con el espíritu del principio de una sola China y de los tres comunicados conjuntos entre China y Estados Unidos. CGTN habló con Karl Ku, profesor de la Fundación de la Academia de Cultura y Educación de China en Taipei, para conocer la opinión de los locales. #China #Taiwan #EEUU #ChinaEEUU #DM
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,1,L'Espagne connaît une nouvelle vague de chaleur en ce début d'été, les températures de juin atteignant leur plus haut niveau depuis quarante ans. Certaines régions ont enregistré des températures de plus de 40 degrés Celsius, soit environ 10 degrés de plus que la normale saisonnière. Une situation qui suscite de grandes inquiétudes.
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,1,For more:
https://news.cgtn.com/news/2022-08-01/China-says-military-won-t-sit-back-if-Pelosi-visits-Taiwan--1c95ZazYeFa/index.html
#China will take firm and strong countermeasures to safeguard its sovereignty and territorial integrity, said Chinese Foreign Ministry spokesperson Zhao Lijian on Monday, warning that the Chinese military will not sit back if U.S. House of Representatives Speaker Nancy #Pelosi visits Taiwan. His remarks came amid the high tensions across the #Taiwan Straits. Pelosi's Asia trip schedule, announced on Sunday, includes Singapore, Malaysia, South Korea and Japan with no mention of Taiwan.
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