The ship, for being on a planet with "global warming".

What?

What does global warming have to do with the sinking of the Titanic?

That iceberg wouldn't have been floating around if it wasn't for "global warming" - the entire planet would have been a glacier.

Wow, that's really critical thinking

In that case, we can add the Sun, CO2, Oxygen, plants (no humans to build Titanic), ...