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Ozone depletion consists of two related events observed since the late 1970s: a steady lowering of about four percent in the total amount of ozone in Earth's atmosphere, [citation needed] and a much larger springtime decrease in stratospheric ozone (the ozone layer) around Earth's polar regions. [1]
The ozone depletion potential (ODP) of a chemical compound is the relative amount of degradation to the ozone layer it can cause, with trichlorofluoromethane (R-11 or CFC-11) being fixed at an ODP of 1.0.
The largest Antarctic ozone hole recorded (September 2006) 2012 retrospective video by NASA on the Montreal Protocol The Montreal Protocol on Substances That Deplete the Ozone Layer is an international treaty designed to protect the ozone layer by phasing out the production of numerous substances that are responsible for ozone depletion.
The fault lines were apparent in a revised document released Sunday by the meeting's chair Luis Vayas Valdivieso of Ecuador, a report that may form the basis of an accord but remained riddled with ...
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One thing people quickly notice about Social Security is that change is virtually inevitable. The most notable change to Social Security benefits in 2025 should be good news. All current ...
The return of WWE’s “Saturday Night’s Main Event” did well in the ratings for NBC. The two-hour broadcast pulled in 2.3 million viewers on Saturday night between 8 and 10 p.m. ET/PT.
Cracks can be formed in many different elastomers by ozone attack, and the characteristic form of attack of vulnerable rubbers is known as ozone cracking.The problem was formerly very common, especially in tires, but is now rarely seen in those products owing to preventive measures.