How is ozone layer harmful?

Answer 1

Excessive ozone in the ozone layer will decay rapidly to near current levels. It is unstable and breaks down with time. It would take a catastrophic event to make too much more than we currently do.

If the ozone layer stayed where it was, and got twice as thick, then we'd have less UV-B striking Earth's surface, fewer cataracts, fewer melanomas, probably higher crop yields. We would also face extreme global warming as ozone is a greenhouse gas. The cooing of the Antarctic is being blamed on the thinning of the ozone layer, for example.

If the atmosphere thinned, and the ozone layer was forced lower, then high levels of ozone (such as peak levels found in the ozone layer) would likely kill most life on Earth in a few decades. Mice that were forced to breathe such levels of ozone for even a day fared very poorly. Ozone is a very strong antiseptic. It is even good with humans for this purpose, so lo level ozone is not a good thing.

The ozone layer is amazing resilient though. The "hole" in the ozone layer appears twice each year during each poles winter. This is due to the lack of sunlight. Once the sun returns, the hole disappears very quickly.

Answer 2

See "How does ozone affect human health?"
See "Is ozone harmful to health?"

Answer 3

Ozone layer is not harmful. Absence of ozone layer is harmful.

Answer 4

Ozone can hurt us. It can hurt at ground level.

Answer 5

The damage to ozone can be harmful. It is because it could create an ozone hole.

Answer 6

The ozone can effect us by global