Is The World Becoming Heavier Or Lighter?

Did some space aliens dump more people, garbage and cars through the ozone layer onto the Earth to make it heavier?
Why not blame global warming? Since water is heavier than ice, all that melted ice from the polar ice caps must be adding a lot more weight. Makes as much sense?
Perhaps McDonald's is to blame---all those hamburgers and fries are making people fat and heavy. That makes sense also. No?
Some day the Earth will fall from space when it gets too heavy. Wonder which way it will fall. If it should fall upward, we might mistake it and run around yelling, "The sky is falling, the sky is falling...!"

I believe the only thing that adds to the Earth's mass are the countless meteorites landing here every day. But so far, they are insignificant. (Weight, heavy or light, is a measure of gravitational force.)

The Earth is a closed system. Additional mass can only be achieved by out side influence. Water and ice have the same weight, yet ice takes up more space. Therefore, ice floats. The changes in the  Earth's mass can only be attributed to adding and subtracting matter, space debris and spacecraft are examples of such occurrences.
The important issues come into play when one takes into consideration the location of mass on a planet in relation to the center of the planet. The closer the mass is located to the center, the faster the planet will rotate. Locating the mass outward slows the rotational speed of of said body. An example of this would be an ice skater, arms in fast... Arms out slow.

The world does lose some lighter gases as we go through space,plus the junk we send out into space,ie rockets and satellites but this is massively offset by meteorites cometary particles landing here,oh all earths vast water supplies came from cometary impacts.

The world is becoming heavier due to more population, increased pollution, heavier traffic and the damaging ozone layer that do not protect us.