This is a rather ignorant comment. Venice was built many centuries ago before they ever thought about things like long-term climate changes, soil subsistence (

This is a rather ignorant comment. Venice was built many centuries ago before they ever thought about things like long-term climate changes, soil subsistence (i.e., the city sinking over time), etc. And it was a very successful city precisely because of its location: port cities are almost always prone to flooding due to being close to sea level, but humans built them because shipping was the primary method of trade from the time the boat was invented up to the invention of the railroad, so port cities frequently became very wealthy due to all the trade going through them. People 1500 years ago had no idea that cities might sink, and they sure as hell couldn't anticipate climate change caused by everyone driving carbon-spewing cars around the planet in the 20th century and beyond.