There is a disinformation campaign afoot here.
Perhaps this is a reason Hansen has retired. Its as good reason as any.
First the article does not address most of the usual radiation from the sun but the solar Storms.
Second it addresses the upper atmosphere and not the lower one that we live in.
It is of some interest of how the article does not explain how 95 % of the energy is re-radiated into space.
For example, "For the three day period [coronal mass ejection (CME)], March 8th through 10th, the thermosphere absorbed 26 billion kWh of energy. Infrared radiation from CO2 and NO, the two most efficient coolants in the thermosphere, re-radiated 95% of that total back into space."
I would have guessed re-radiation would have been 50%. Half out and half in. Further coolants is a poor choice of words, as absorbing radiation as emitting radiation would have been better. Further this is the thermosphere being discussed.
Once again context is everything.