Why Is Tokyo Tunneling Under Its Streets? The Reason is Simple When You Think About It

Amaze Lab

There are a lot of ways humanity is readying itself for the effects of climate change, but in Japan, they’re digging. They are tunneling a massive 42-foot-wide cavern that will eventually stretch some 2.8 miles under the city of Tokyo and divert flood waters.

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00:00there are a lot of ways humanity is readying itself for the effects of climate change but

00:08in Japan they're digging this is the massive 42 foot wide tunnel that will eventually stretch

00:13some 2.8 miles under the city of Tokyo but why well for drainage as the island nation

00:19is expected to continue to get more and more heavy rainfalls as our planet gets warmer that

00:24means the city will need more places for that water to go and their 23 year old system just

00:28won't cut it the manager of the tunnel program says that in the 23 years they have had their

00:33previous system they have had to use it 147 times adding that the tunnel has mitigated some 1.03

00:40billion dollars in flood related damages however as the temperature goes up and there's more water

00:45vapor in the atmosphere there will be heavier and more frequent rain events especially what they

00:50call guerrilla downpours or sudden violent storms that are becoming more common in Japan that also

00:55mean severe storms like the recent typhoon shan shan will likely become more common as well

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