system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: If the Earth has no moon, what would our oceans be like?

There wouldn't be tides as we know them now, or none at all?   Would temperatures and currents be different?
gpt
Tides would generally be about two-thirds less powerful, and be much more closely tied to the time of day.  The moon's tidal force would be gone, but the sun's tidal force -- about half as powerful as the moon's -- would remain.