Question

how to reduce gravity??​

Answer 1

By going to the space by the space by rocket LOL.

sorry, it was a joke.

Original Answer-

As the sun expands, the oceans will boil off into space, reducing the planet's mass and therefore cutting the force of its gravity. ... So to change Earth's gravity we would need to add or remove mass from our planet. But to make a noticeable change, we would need to move vast amounts of material