this post was submitted on 02 Oct 2023
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The Panama Canal announced Saturday it will reduce the maximum number of ships travelling the waterway to 31 per day, from 32 in August, due to a drought that has reduced the supply of fresh water needed to operate the locks.

That compares to daily averages of 36 to 38 ships per day under normal operation.

Nine ships per day will be allowed to use the new, bigger NeoPanamax locks and 22 per day will be handled through the older Panamax locks.

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[–] [email protected] 29 points 10 months ago (37 children)

Why do they need to use fresh water to fill the locks? I get that pumping salt water may come with a bit more maintenance but it just seems like a waste to use all that fresh water.

[–] [email protected] 47 points 10 months ago (3 children)

The middle part of the canal is 26 meters above sea level, and the canal is way too big for them to pump sea water into it.

This image kinda illustrates it

[–] [email protected] 12 points 10 months ago (3 children)

Easy fix, just dig down that 26 meters!

All the way across the length of the canal.

I'm sure a couple dudes with shovels could knock it out in a week.

Two weeks tops.

[–] [email protected] 7 points 10 months ago (3 children)

So interesting thing

Digging out the height difference and making it a straight shot canal would have VERY BAD ecological consequences.

Sea level on the Pacific side is higher than on the Atlantic side, meaning that opening a straight shot canal would cause the Pacific to begin draining into the Atlantic through the canal

This could have DRASTIC implications for the Caribbean and North Atlantic because, how much Pacific needs to get into the Atlantic before the water tables are balanced‽

[–] [email protected] 3 points 10 months ago

plus it allow sea snakes in to the Caribbean

[–] [email protected] 1 points 10 months ago

That’s fucking wild what lol

[–] [email protected] 1 points 10 months ago (2 children)

I thought sea levels were the same at the same latitude all around the globe. I feel like I've been lying to myself all these years now.

[–] [email protected] 5 points 10 months ago

It's pretty unintuitive because we're not used to dealing with ocean sized bodies of water in day to day life. Part of the explanation is just that the prevailing winds pile all the water in the Pacific up against the coast, causing higher sea levels on the West Coast. The lower salinity of the Pacific also causes lower water density, which translates to higher sea levels.

[–] [email protected] 5 points 10 months ago

Also tides are not the same on both sides, even if they were the same average level, the tides definitely wouldn't be synchronized. This would result in very strong currents in the canal, making it impossible to safely navigate. The most common fix for that type of situation is to put... locks in the canal.

[–] [email protected] 4 points 10 months ago

Easy fix, just dig down that 26 meters!

All the way across the length of the canal.

I’m sure a couple dudes with shovels could knock it out in a week.

Why shovels when you can use plowshares?

Proposed uses for nuclear explosives under Project Plowshare included widening the Panama Canal, constructing a new sea-level waterway through Nicaragua nicknamed the Pan-Atomic Canal ...

Or maybe we should stop messing with our climate.

[–] [email protected] 4 points 10 months ago

I saw two guys on YouTube dig a whole city in the mud by hand I bet they could totally do it lol

[–] [email protected] 5 points 10 months ago

The canal is actually larger than I thought.

[–] [email protected] 3 points 10 months ago

C'mon physics, be a bro

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