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Earth’s Ozone Layer Recovers Itself To A Great Extent

Adding onto many heartful news about mother earth healing itself, the Ozone layer has finally recovered itself to the extent, that no possible harm could be done anymore to the surface.

The exact location above Alaska, using evidence from satellite measurements and environment models, Antara Banerjee and her colleagues at the University of Colorado Boulder modeled shifting wind patterns relevant to the recovery of the crust. The recovery is primarily attributed to the 1987 Montreal Protocol, which prohibited the development of ozone-depleting compounds, accepted globally.

Prior to 2000, a band of air movements in the southern hemisphere dubbed the mid-latitude jet stream had steadily moved toward the South Pole. The global airstream was named the Hadley vortex and was blamed for road storms, coastal rain belt, floods, and subtropical deserts.

Banerjee and her colleagues found that all of these patterns ceased and started to slowly change in 2000. The transition may not be interpreted by natural temperature variations and Banerjee claims they are a direct result of the ozone layer returning.

Changes in the direction of a jet stream will affect the weather by adjustments in air temperature and rainfall, contributing to changes in ocean temperature and concentration of salts.

Martyn Chipperfield at the University of Leeds in the UK, who wasn’t involved in the study added that it is necessary to learn which facets of climate change being triggered by carbon dioxide pollution, which tend to increase, and ozone depletion, which is now stopping and reversing.

Such pollutants have very long lifetimes in the environment given the prohibition on ozone-depleting agents, and complete recovery of ozone is not likely to take place for many decades.

The ozone layer can also regenerate in various areas of the world at varying velocities, Banerjee states. For example, the ozone layer is predicted to return to 80’s levels by the 2030s for the mid-latitudes of the northern hemisphere and by the 2050s for the mid-latitudes of the south, she states, whereas the Antarctic ozone hole is projected to rebound a little later in the 2060s.

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