This radical reaction is initiated by the use of sunlight or ultraviolet light to split diatomic ... absorb ultraviolet light and cause homolytic bond fission producing a chlorine free radical which ...

That ozone loss is particular to the polar continent, because of chemical reactions that occur in very low temperature, high atmospheric clouds. Those reactions break down ozone - eating a hole in ...

This photochemical reaction also happens in water, though it doesn’t work if there is oxygen present. The bond clipping uses a different radical mechanism from the bond clicking and can be ...

Sep. 12, 2024 — Ozone gas is reducing the growth of tropical forests -- leaving an estimated 290 million tons of carbon uncaptured each year, new research ... Scientists Find a Human ...

A steady decline in the levels of ozone-harming CFC chemicals in the atmosphere has resumed, scientists say. This follows a recent, dangerous pause in that downward trajectory, which could have ...

On 16 September, the world will mark the International Day for the Preservation of the Ozone Layer. It was on this day, 35 years ago, that the Montreal Protocol, considered one of the most ...

However, it’s not the only factor playing a part in sustaining on our planet. Image caption, Without the ozone layer, planet Earth would be a very different place. One of those is the ozone layer.

Adjust the colors to reduce glare and give your eyes a break. Use one of the services below to sign in to PBS: You've just tried to add this video to My List. But first, we need you to sign in to ...

Chemical reactions make new chemicals. Atoms are rearranged during a chemical reaction, but the number of atoms does not change. A catalyst is a substance that speeds up a chemical reaction.