If all of the landfills in the world overfilled then the water would get contaminated and when people drank it everybody would get sick and either die or turn into Zombies.
THE FOOD WILL END UP IN THE LANDFILLS AND THEY WILL GET TOO FULL. THEN, PEOPLE WOULD JUST KEEP WASTING AND WASTING UNTIL THE WHOLE WORLD IS FULL! MAYBE THAT IS A LITTLE EXAGGERATION BUT IT COULD HAPPEN IN 100 YEARS!
it means less leaks in the earth and more recycling.
If you overfilled the oil then you can drain some out. There are small hand held pumps that would work fine for the purpose. The exact process would depend on what you overfilled and how much. If the overfill is slight it might not matter on some things and be a big problem in some other. You did not say what you overfilled to give a real exact answer.
Most big towns would have a landfill and big cities would have several landfills.
you can but it would be easier to drain it from the bottom
There would be no slaves in the world..dugh
The engine oil is overfilled.
The world would collapse.
we would die
My world would die
the world would be a better place
The world would be very lonely if there was no love. There would be no children and the world would be down.