The Accumulation of Human-Made Mass on Earth

Sorry to be a stickler, but the concept of “human-made” (anthropogenic) mass is flawed.

Humans do not make mass, they just repurpose and move around what’s already here. (The conservation of mass applies, since earth is almost a closed system.)

When humans are gone, the mass will just return to the earth where it will stay for another couple of billion years.