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Starlink’s growing satellite fleet is increasing atmospheric re-entries, releasing harmful particles and risking long-term climate and ozone damage.
A surge in satellite megaconstellations, primarily from SpaceX’s Starlink, is accelerating atmospheric re-entries, releasing alumina and other particles that may disrupt ozone levels, heat the upper atmosphere, and alter climate patterns.
With nearly 15,000 active satellites and plans for millions more, each weighing up to 1,250 kg, re-entry debris is increasing, posing ground risks—such as fragments landing in Canada and Australia—and raising collision threats in orbit.
Scientists warn of potential long-term environmental harm, including ozone depletion and atmospheric changes, while current data gaps and lack of global regulation hinder full assessment.
Without coordinated international oversight, the unchecked expansion of satellite launches risks irreversible atmospheric impacts.
La creciente flota de satélites de Starlink está aumentando las reingresas atmosféricas, liberando partículas dañinas y arriesgando daños a largo plazo al clima y al ozono.