What is the Area in the atmosphere over Antarctica that was created due to the output of greenhouse gases. It is now shrinking due to decreased use of these gases.

The area in the atmosphere over Antarctica that was created due to the output of greenhouse gases is known as the Antarctic ozone hole. It is a region of severely depleted ozone layer, primarily caused by the emissions of chlorofluorocarbons (CFCs) and other ozone-depleting substances.

Since the implementation of the Montreal Protocol in 1987, which led to the phasedown of production and use of these gases, there has been a gradual reduction in the release of ozone-depleting substances into the atmosphere. As a result, the Antarctic ozone hole is slowly shrinking.

The Antarctic ozone hole typically reaches its maximum size around September or October each year before starting to decline. The decrease in the use of ozone-depleting substances has led to the stabilization and recovery of the ozone layer over Antarctica. However, it is important to note that complete recovery is expected to take several decades.