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By Mario Molina Nobel Prize Laureate in Chemistry and Durwood Zaelke President Institute for Governance and Sustainable Development Ozone depletion was the first human threat to the global atmosphere to be recognized. It was also the first to be addressed by the international community. The results have been truly remarkable. The Montreal Protocol on Substances that Deplete the Ozone Layer ...

 

NAIROBI 9 January 2023 ? The ozone layer is on track to recover within four decades with the global phaseout of ozone-depleting chemicals already benefitting efforts to mitigate climate change. This is the conclusion of a UN-backed panel of experts presented today at the American Meteorological Society?s 103rd annual meeting. Examining novel technologies such as geoengineering for the ...

 

Human activities have had a major effect on the balance of the Antarctic marine ecosystem this can be seen by damage of large agae such as kelp that is caused by increased UV penetration

 

Safeguarding the environment for future generations The United Nations Environment Programme (UNEP) is the United Nations? leading global authority on the environment driving transformational change on the triple planetary crisis: the crisis of climate change the crisis of nature land and biodiversity loss and the crisis of pollution and waste. Since its founding in 1972 UNEP has served ...

 

But in 1985 a hole was confirmed in the ozone layer over Antarctica. The world?s natural sun shield which protects humans plants animals and ecosystems from excessive ultraviolet radiation had been breached.

 

In both the Arctic and Antarctica warmer ocean water contributes to the melting of ice sheets. While Arctic melting doesn?t lead to a significant rise in sea levels as the ice is already in the water melting of Greenland or Antarctic ice will as it sits on land.

 

Here?s a closer look at some of the most popular misconceptions around the climate crisis.

 

This computer image from October 1987 shows the thinning ozone layer over Antarctica. Photo by National Oceanic and Atmospheric Association In 1987 the countries of the world adopted the Montreal Protocol which has since phased out 99 per cent of ozone-depleting substances and helped arrest the ozone layer?s decline.

 

The Montreal Protocol The Montreal Protocol on Substances that Deplete the Ozone Layer is the landmark multilateral environmental agreement that regulates the production and consumption of nearly 100 man-made chemicals referred to as ozone depleting substances (ODS). When released into the atmosphere those chemicals damage the stratospheric ozone layer Earth?s protective shield that ...

 

Commission for the Conservation of Antarctic Marine Living ResourcesA. OverviewAntarctica is surrounded by an unbroken and dynamic body of water known as the Southern Ocean which constitutes about 10% of the world's total ocean surface. For about 200 years Antarctica's resources have been unsystematically harvested. In many cases the intense level of exploitation resulted in the severe ...