Question
What effect did the Montreal Protocol have on Earth's ozone?
It moved the ozone hole to the other pole.
It decreased ozone in the stratosphere.
It increased ozone in the stratosphere.
It did not affect the ozone.
It moved the ozone hole to the other pole.
It decreased ozone in the stratosphere.
It increased ozone in the stratosphere.
It did not affect the ozone.
Answers
GPT-4o mini
The Montreal Protocol had the effect of **increasing ozone in the stratosphere**. The treaty, which was adopted in 1987 to phase out the production and consumption of ozone-depleting substances (ODS), has led to a gradual recovery of the ozone layer. The reduction in the use of chlorofluorocarbons (CFCs) and other harmful chemicals has significantly decreased the thinning of the ozone layer, contributing to its restoration over the years.