Last year, Natural Resources Wales said building a flood defence wall was "not economically viable".
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我母亲今年80岁。她25年前办理了退休手续，自此与社会渐渐脱节。如今，她沉浸的世界藏在手机屏幕里，每天抱着手机，刷短视频，看各种真伪难辨的消息，并时常转发给我，分享一些“理财机会”和“养生秘诀”。我劝她少看，她不听，就愿意相信虚拟世界里的这些所谓“权威”。
But what if it’s not fine? Even back in 1996, before a single component of the ISS was launched into orbit, NASA foresaw the possibility of an even worse worst-case scenario: an uncontrolled reentry. The crux of this scenario involves multiple systems failing in an improbable but not completely impossible cascade. Cabin depressurization could damage the avionics. The electrical power system could go offline, along with thermal control and data handling. Without these, systems controlling coolant and even propellant could break down. Unmoored, the ISS would edge slowly toward Earth, maybe over a year or two, with no way to control where it is headed or where its debris might land. And no, we could not save ourselves by blowing the station up. This would be extremely dangerous and almost certainly create an enormous amount of space trash—which is how we got into this hypothetical mess in the first place.