https://www.scientificamerican.com/article/new-5g-wireless-deal-threatens-accurate-weather-forecasts/

The international agency that regulates global telecommunications agreed to new radio-frequency standards on 21 November. Meteorologists say the long-awaited decision threatens the future of weather forecasting worldwide, by allowing transmissions from mobile-phone networks to degrade the quality of Earth observations from space.

Wireless companies are beginning to roll out their next-generation networks, known as 5G, around the world. The new agreement is meant to designate the radio frequencies over which 5G equipment can transmit. But some of those frequencies come perilously close to those used by satellites to gather crucial weather and climate data. To keep the signals from interfering with one another, researchers have proposed turning down the amount of noise allowed to leak from the 5G transmissions.