Do we really need the Moon in the night sky? What is its actual purpose?
What would happen to the oceans if the Moon disappeared?
Earth’s oceans would have much smaller tides - about one-third the size of what they are now. Tides churn up material in the oceans, which allows coastal ecosystems to thrive. Animals in these environments – crabs, mussels, starfish, snails – rely on the tides for survival.
Without a coastal ecosystem, this could have knock-on effects for other land and sea animals and could lead to mass extinctions.