It's a combination boost of changes in ocean circulation, land ice dynamic and land subsidence caused by human activity.

这是人类活动引起的海洋环流、陆冰动力和地面沉降变化的综合结果。

Land subsidence has been aggravated by over-pumping of underground water and the construction of thousands of high-rise buildings.

过度抽取地下水和建造数以千计的高层建筑加剧了地面沉降。

On top of that, land subsidence had made matters worse.

最重要的是，地面下沉使事情变得更糟。

" Land subsidence is an overlooked problem that almost exists everywhere, " said Manoochehr Shirzaei, a geophysicist at Virginia Tech who has studied subsidence in American coastal cities using similar methods.

“地面沉降是一个被忽视的问题，几乎在任何地方都存在，”弗吉尼亚理工大学的地球物理学家马努切赫尔·希尔扎伊说，他用类似的方法研究了美国沿海城市的沉降。

" I believe the majority of the adaptation strategies that we have, and resiliency plans to combat climate change, are inaccurate, just because they did not include land subsidence, " he said.

“我认为，我们现有的大多数适应策略和应对气候变化的韧性计划都是不准确的，因为它们没有包括地面沉降研究，”他说。

A city in West Africa, for example, had similar challenges but compounded with very dense populations along the coast, severe land subsidence and drainage challenges that were exacerbated by poor solid waste management in some parts of the city.

例如，西非的一座城市面临着类似的挑战， 但沿海地区人口非常稠密，严重的地面沉降和排水挑战加剧了城市某些地区固体废物管理不善的问题。