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@NASA is warning of a "wobble" in the moon's orbit that is set to see the world face significantly more natural disasters.
An onslaught of coastal flooding starting in the mid-2030s is expected, Nasa has warned
https://www.telegraph.co.uk/world-news/2021/07/14/wobbling-moon-will-cause-devastating-worldwide-flooding-2030s/ …pic.twitter.com/G1alJKnwQf
Numbers of floods could quadruple as the gravitational effects of the lunar cycle combine with climate change to produce "a decade of dramatic increases" in water disasters.
Coastal cities would experience "rapidly increasing high-tide floods" lasting a month or longer
The main cause is a "regular wobble" in the moon’s orbit - first recorded in 1728
@NASA "What’s new is how one of the wobble’s effects on the moon’s gravitational pull – the main cause of Earth’s tides – will combine with rising sea levels resulting from the planet’s warming"pic.twitter.com/ORDcI3pqC8
The wobble in the moon's orbit takes 18.6 years to complete.
For half of that time, regular daily tides on Earth are suppressed, meaning high tides are lower than normal, and low tides are higher than normalhttps://www.telegraph.co.uk/world-news/2021/07/14/wobbling-moon-will-cause-devastating-worldwide-flooding-2030s/ …
During the other half of the cycle tides are amplified.
High tides get even higher, and low tides get even lower.
As global sea levels rise, the amplification effect will be increasedhttps://www.telegraph.co.uk/world-news/2021/07/14/wobbling-moon-will-cause-devastating-worldwide-flooding-2030s/ …
The next "lunar assist" to high tides will be around mid-2030.
By that time global sea levels will have been rising for another decade.
It will have passed a "tipping point" and the result will be a "leap in flood numbers on almost all US mainland coastlines" @NASA saidpic.twitter.com/9n9myzp7Tk
"The combination of the moon’s gravitational pull, rising sea levels, and climate change will continue to exacerbate coastal flooding on our coastlines and across the world," says Bill Nelson, head of the space agency
https://www.telegraph.co.uk/world-news/2021/07/14/wobbling-moon-will-cause-devastating-worldwide-flooding-2030s/ …pic.twitter.com/zh7bd5p4JM
According to the UN - by 2050 coastal cities will see hundreds of millions of people at risk from floods made worse by rising seas.
The leader of @NASA's Sea Level Change Team, said urban planners should prepare for the increase in high-tide floods and extreme weather eventspic.twitter.com/Glxn77Gr2s
“Low-lying areas near sea level are increasingly at risk and suffering due to increased flooding,
"It will only get worse," says Bill Nelson, head of the space agency.
Read more:https://www.telegraph.co.uk/world-news/2021/07/14/wobbling-moon-will-cause-devastating-worldwide-flooding-2030s/ …
What's a woobly moon mean?
From NASA: "... as the moon makes its elliptical orbit, its velocity varies and alters that synchronicity, causing our perspective of the "light side" to appear at slightly different angles throughout any given month.pic.twitter.com/e5g7KA2mLL
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