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☆ Almost half of all major Chinese cities are sinking, study says
▼ + stars: | 2024-04-21 | by ( Cameron Manley | ) www.businessinsider.com time to read: +1 min

Almost half of China's major cities are sinking, a new study has found. Around 45% of China's urban land is sinking faster than 3 mm per year. download the app Email address Sign up By clicking “Sign Up”, you accept our Terms of Service and Privacy Policy . AdvertisementAlmost half of China's major cities are sinking, putting millions of locals at risk of flooding, according to a new study published in the journal Science this week. The study found that 45% of China's urban land was sinking faster than 3 mm a year, while 16% was sinking at a rate of more than 10 mm a year.

Persons: Robert Nicholls, — Organizations: Service, Business

☆ China’s Cities Are Sinking Below Sea Level, Study Finds
▼ + stars: | 2024-04-18 | by ( Delger Erdenesanaa | ) www.nytimes.com time to read: +1 min

As China’s cities grow, they are also sinking. In 100 years, a quarter of China’s urban coastal land could sit below sea level because of a combination of subsidence and sea level rise, according to the study. “It’s a national problem,” said Robert Nicholls, a climate scientist and civil engineer at the University of East Anglia who reviewed the paper. Dr. Nicholls added that, to his knowledge, this study is the first to measure subsidence across many urban areas at once using state-of-the-art radar data from satellites. Subsidence in these cities is caused in part by the sheer weight of buildings and infrastructure, the study found.

Persons: “, ”, Robert Nicholls, Nicholls Organizations: University of East Anglia

☆ Why countries are choosing to build new cities in places at high risk of worsening floods
▼ + stars: | 2023-10-04 | by ( Laura Paddison | ) edition.cnn.com time to read: +5 min

Researchers analyzed global flood hazard datasets and annual settlement footprint data covering the three decades between 1985 and 2015 to understand the populations most affected by flood risk. They found over this period, as the world’s settlements grew by 85%, urbanization happened much more rapidly in high-hazard flood zones than in areas with low flood risk. In 2015, more than 11% of built-up areas globally faced high or very high flood risk, meaning areas at risk of flooding depths of at least 50 cm (17 inches) during 1-in-100-year flooding events, according to the report. Upper-middle income countries had the largest proportion of new human settlements in the highest flood risk zones, the report found. “This is concerning as development patterns are enhancing risk without climate change – climate change will further exacerbate these risks in the future.”

Persons: ”, Paolo Avner, Netherlands –, Molave, Manan Vatsyayana, Robert Nicholls Organizations: CNN, World Bank, Municipal, University of East Locations: East Asia, North America, Saharan Africa, China, Japan, Netherlands, Vietnam, Hoi, AFP, Southwest Florida, University of East Anglia

☆ Water's edge: the crisis of rising sea levels
▼ + stars: | 2014-09-04 | by ( Reuters Graphic | ) www.reuters.com time to read: +20 min

But sea levels have been rising for 100 years in Baltimore.”ROCKET SCIENCEThe irony is evident at Wallops Flight Facility. Yet this bastion of climate research has been slow to apply the science of sea level rise to its own operations. Reviewers from state and federal agencies criticized the 348-page document for failing to adequately take rising sea levels into account in the project design and impact, or to temper future plans for expansion. Joshua Bundick, Wallops’s environmental planning manager, explained that he distilled the issues “down to only the highest points,” and sea level rise wasn’t among them. The cost to American taxpayers of repeated destruction of the parking lot and causeway from rising sea levels would only increase, Fish and Wildlife officials said.

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