Hole in ionosphere is caused by sudden stratospheric warming

Forecasting space weather is even more challenging than regular meteorology. The ionosphere—the upper atmospheric layer containing particles charged by solar radiation—affects many of today's vital navigation and communication ...

Geoengineering: A whiter sky

One idea for fighting global warming is to increase the amount of aerosols in the atmosphere, scattering incoming solar energy away from the Earth's surface. But scientists theorize that this solar geoengineering could have ...

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