Great question there, Denis.

I think your friend might be talking about:

1) The four heat domes stretching accross the globe

2) The Ozone holes as a gaping vulnerability in our armor against radiation

They both are major players in the current global situation. The first one, heat domes, has been gaining exposure with the heatwaves we've had lately. Ozone is news from the past and has lost all marketing value, though it's situation has been spiraling down.

I am just guessing here.

Maybe your friend has a different input.