NASA's Van Allen Probes Spot Man-Made Barrier Shrouding Earth

Humans have long been shaping Earth’s landscape, but now scientists know we
can shape our near-space environment as well. A certain type of
communications — very low frequency, or VLF, radio communications — have
been found to interact with particles in space, affecting how and where
they move. At times, these interactions can create a barrier around Earth
against natural high energy particle radiation in space. These results, part
of a comprehensive paper on human-induced space weather, were recently
published in Space Science Reviews.


https://www.nasa.gov/feature/goddard...rouding-earth/

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