Still smaller floods are invoked to create refreshing Jelly Baths in your own tub.
And in a similar vein, the world would be flatter thanks to increased erosion. The thicker syrup-water will do a more efficient job of wearing everything down as it flows, I’d think.
Why is everyone thinking so big? Imagine sweating BO flavored syrup - all day in summer. Who would want to live like that?
Hah…most of my favorite beers are about as thick as syrup anyway.  I think I’d be forced to eat my Belgian Quadrupels with a spoon in this hypothetical world.  
Chug! Chug! Chug!
I think I could handly a syrupy beer. It’s multiplying the subsequent trips to the bathroom by twenty minutes each that’s gonna suck.
You’d have to eat not drink beer, coffee, tea etc.
“Hey man, wanna nuther slice of Guinness?”
I was talking to my son the other night and somhow we came onto this topic. Kinda tried to explain that if you change one little thing, a lot of other things have to change.
If our oceans were vast seas of syrup, we’d probably have ships with flatter hulls.
Downspouts would need to extend all the way to the street. Roofs would need to be extremely pitched… no flat roofs anymore.
Water to, and waste from a home would need to be carried in pipes much larger in diameter.
Waterfalls would be much more silent with very little spray.
BTW, I thought this post had died quickly and painfully after the first few responses…
Nonsense. It’s been flowing like water.