Well the short rude answer is you are mistaken. The longer answer is that some correlated things have underlying causal relationships: one causes the other, vice versa, or a third unspecified correlate is causative.

But see that word some ? It's important. Because some are entirely unrelated, and the word correlated is not co-related in a causative sense. You might find piracy corollelates with consumption of potato chips. It doesn't have to mean anything.

The relation goes to trend: up or down. Positive or negative correlation. Why? The "why" kind of related, is different. Correlation is observed relationship, not functional, actual, causative relationship until a mechanistc reason is found, or it's absence is understood, and it's just.. pirates and chips.

The problem here is english. "Related" has different meanings.