What if the moon disappeared overnight? Scientists say the consequences would be immediate and severe, changing the oceans, the climate and even the length of a day. Without the moon, days on Earth would last only six hours.
Earth will undergo a complete transformation that scientists predict will occur within a short geological period due to one outcome that will cause the planet to spin almost twice as fast as normal.
The moon is responsible for roughly two-thirds of Earth’s tidal activity. When you remove the moon from Earth, the tides will decrease to a third of their current size, because the sun’s gravity will be the only tidal force left.
People think the situation seems manageable. The situation poses an unmanageable challenge. Tidal movement through coastal waters creates a circulation of nutrients that nourishes entire ecosystems dependent on crabs, mussels, starfish and snails.
When the process stops, the ecosystems experience a total collapse rather than minor degradation. The direct consequences of this relationship will lead to large-scale extinctions of terrestrial animals that depend on coastal animals for food in large parts of the interior.
Ocean currents that receive their energy from tidal forces use their motion to transport warm water through the oceans while balancing temperatures. If these systems were to disappear, the world would experience climate changes in all its regions.
The Earth revolves around the Sun and maintains an inclination of approximately 23.5 degrees to its orbital plane. The moon’s gravity maintains the tilt that produces our four seasonal periods. The moon’s gravity acts as the stabilizing factor that maintains the tilt at the current angle.
Without this, Earth would experience unpredictable tilting motions that could reach anywhere from zero degrees to extreme tilt angles, causing severe ice ages or extreme summer heat to spread across currently temperate areas. Scientists estimate that atmospheric instability could generate wind speeds that could exceed 300 miles per hour during the worst weather conditions.
Moonlight serves as an operational tool within natural environments. Nocturnal predators, from big cats to owls, tailor their hunts to the phases of the moon and use low light to approach prey.
A completely starlit sky would create the opposite effect. The initial increase in prey numbers would occur as predator populations that developed lunar-based hunting patterns faced reduction or extinction.
Ecosystem disruptions will extend their impacts to ecosystems already suffering from tidal and seasonal instability.

