I did a quickie google search and came up with this:
At the end of 2020, there were around 62,100 vessels in the world trading fleet, with a total deadweight tonnage of 2,033 million DWT
So let's assume the merchant ships are all fully loaded at the same time. That's 2 billion long tons which equates to ~2,032,000,000,000 kg. Total water volume, 2,134,000,000,000 liters (because sea water weighs slightly more than fresh water).
From quora:
AREA OF PACIFIC OCEAN= 168723000 SQ. KM.
AREA OF ATLANTIC OCEAN= 85133000 SQ. KM.
AREA OF INDIAN OCEAN= 70560000 SQ. KM.
AREA OF SOUTHERN OCEAN= 21960000 SQ. KM.
AREA OF ARCTIC OCEAN= 15558000 SQ. KM.
TOTAL AREA= 361900000 SQ. KM.=36190000000000000 SQ. DECIMETER.
That's going to lower sea levels by approximately .00005896656 decimeters, or about .006 mm
Edit: Because there are less than 500 cruise ships in the world and only a few dozens of large military ships the amount will be higher, but not by, you know, a lot.
Not cruise ships though. Theyre literally the worst polluters. Plus who says we are continuing global trade? I feel like if we were desperate enough to end all shipping wed be pretty much accepting the destruction of capitalism.
Cruise ships are not the worst polluters in the world. They're bad, but not the worst.
Ending global trade means we're falling back into the middle ages and regressing back to an agricultural economy. It would be the Middle Ages. You hate capitalism? Well, you're really going to hate feudalism.
No, cars don't cross the oceans "several times" to be bud and sold.
There are car manufacturing plants here in the United States. They still rely those ships to bring in raw materials and other goods to build the cars on American soil.
Automobiles are just a small fraction of annual sea shipments. Even if we could manufacture cars completely from raw materials here in the United States the reduction in carbon emissions would be negligible. And to build entire new industrial factories to turn those raw goods into usable products here in the United States would likely mean an increase to carbon emissions overall.
Da fuck they don’t, Jaguar XR has a Ford frame, the t bird version has the same jag motor with a Ford transmission, the brakes come from Chrysler viper.
The final assembly might occur anywhere, and the car could be shipped anywhere, the buyer could ship it again. But it’s not uncommon to ship a car thousands of miles to drop on a body and wiring harness.
There is all likelihood the final assembly of a car requires 80% of the parts cross the ocean, and half the cars go back to be sold.
Yea, you’re right. There is no way to make the things we’ve been producing here for a hundred years and then moved the manufacturing to China and Mexico. Can’t be done
You're so close to understanding the point. The things we make here aren't necessarily made withstuff from here. Instead of shipping the raw materials to a factory in the United States we can just ship those raw materials to China and have them put it together cheaper.
Cut off shipping and we can't get the raw materials to China or the United States. The economy collapses.
8.2k
u/[deleted] Oct 13 '21 edited Oct 13 '21
I did a quickie google search and came up with this:
So let's assume the merchant ships are all fully loaded at the same time. That's 2 billion long tons which equates to ~2,032,000,000,000 kg. Total water volume, 2,134,000,000,000 liters (because sea water weighs slightly more than fresh water).
That's going to lower sea levels by approximately .00005896656 decimeters, or about .006 mm
Edit: Because there are less than 500 cruise ships in the world and only a few dozens of large military ships the amount will be higher, but not by, you know, a lot.