Why is there currently talk about the dangers of “space debris”? Who is he threatening?

Why is there currently talk about the dangers of “space debris”? Who is he threatening? Suggest ways to eliminate the dangers that come from “space debris”

Scientists talk about the danger of space debris, since a huge amount of spent satellites, rocket stages and so on have accumulated in the near-Earth space. It threatens working stations and satellites, as debris can collide with working devices and disable them. The method of struggle can be the destruction of garbage or changing the trajectory of movement, so that the particles of garbage burn in the atmosphere of the Earth.

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