> It explained how the Earth generates the magnetic field that protects the planet from cosmic radiation,

Our protection from cosmic radiation is mostly due to Earth's thick atmosphere, not its magnetic field.

> Our protection from cosmic radiation is mostly due to Earth's thick atmosphere, not its magnetic field

Primary defense against cosmic radiation: magnetic field

Secondary defense: atmosphere

https://science.nasa.gov/science-research/earth-science/eart...

The magnetic field deflects particles from the Solar Wind, whereas the atmosphere blocks a lot of the radiation as I understand it.

I don’t see any problems with the quote.

Without magnetic fields, the solar wind strips away atmospheres, like what happened to Mars.