What would the Earth be like if the United States did not topographically exist and everything else did?

Well, it would depend on whether it existed in history and just sunk into the ocean recently, or whether it was always submerged. In either case, the effect on the European economy and other things from the 17th Century onwards was pretty great and would affect all sorts of things in various ways. There might be many more Northern Europeans in Canada in Mexico, the conflicts between Britain, Spain, France etc during colonization would be different. The World Wars would be different. All sorts of things would be different. Too much speculation to say. Hopefully the trend towards idiocracy and massive resource exploitation would be reduced, but who knows?

Wetter

I’m going to need a bit more details.
No North American continent?

No Alaska?

Still a South American continent ?

“And everything else existed”... seems like plenty of information just in those four words…

The total land area of the 50 US states is about 3,530,000 square miles.
Of the oceans, it’s about 139,100,000 sm.

Assuming that the total volume of the earth’s oceans is the same, and their total seabed area is 3,530,000 sm greater, then they would be about 300 feet shallower.

This would enlarge the areas of the other land masses by about 2.5%. E.g., Canada would be about 3.9 million sm, instead of about 3.8 million.

With sea level being 300 feet lower, mountains would be taller by that measure. E.g., Mt. Whitney would be 14,795 ft, and Mt. Anconcagua would be about 23,100 ft.

Well, the Panama Canal wouldn’t be necessary. And I wonder is the Gulf Stream would exist. Without the GulfnStream, Europe would be a lot colder.

@Brian1946

It’s Mt. Aconcagua, you brainless idiot!

I wonder if I’ll get flagged for personally attacking myself. ;-p