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Supplements: OZONE LAYER PROTECTION- - THE MISSION GOES ON

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Most of the oxygen in the Earths atmosphere is in the form of molecules containing two oxygen atoms, known by the familiar chemical symbol 02. In certain circumstances, three atoms of oxygen can bond together to form ozone, a gas with the chemical symbol 03. Ozone occurs naturally in the Earths atmosphere where its concentration varies with altitude. Concentration peaks in the stratosphere at around 25-30 kilometres from the Earths surface and this region of concentration of the gas is known as the ozone layer.

Pakistan signed and ratified the Montreal Protocol in 1992. The Ozone Cell was established under the then Ministry of Environment in 1996 to oversee and ensure implementation of the Protocol. Pakistan is not an ODS producing country but to meet its domestic needs imports a few substances (ie CFC, CTC, HCFC, Halon gas, Methyl Bromide etc). the main objectives of the Project are to:-
Being the party of Montreal Protocol, Pakistan has already implemented 29 investment Projects to phase-out 2,195 Ozone Depleting Potential (ODP) ton of Ozone Depleting Substances (ODSs) by grant funding of 18.9 million US $. Pakistan has phased out 12 million ton eq. CO2 after implementing these projects.
JUST OVER a quarter century ago, the world united TO reverse the rapid depletion of the atmospheric ozone layer, which protects Earth from harmful radiation from space. Today, the ozone layer is well on track to recovery within the next few decades.
The theme for this year's celebration is "Ozone Layer Protection: The Mission Goes On". The Montreal Protocol has so far been successful in meeting some of its targets on phasing out ozone-depleting substances. As a result, the abundance of ozone-depleting substances in the atmosphere is declining and the ozone layer is expected to recover around the middle of this century. There are, however, some remaining challenges to the phase-out of ozone-depleting substances.

 



 
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