Arctic ozone loss hits new record

The video explains how UVB rays from the sun are affected by man-made ozone-depleting gases like chlorofluorocarbons. These gases break down atmospheric ozone through a two-stage reaction. An unusually cold winter in the Arctic has accelerated the activity of these gases, leading to the formation of an ozone hole five times the size of California.

What is the source of UVB rays mentioned in the text?

What gases are identified as man-made ozone depleting substances?

Describe the process that occurs once ozone depleting gases are in the atmosphere.

How does an unusually cold winter above the Arctic affect ozone depletion?

What is the size of the hole created in the ozone layer as mentioned in the text?