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The United Nations designates a specific theme each year for the International Day for the Preservation of the Ozone Layer to highlight different facets of ozone protection. 2015: 30 Years of Healing the Ozone Together. [6] 2016: Ozone and climate: Restored by a world united. [7] 2017: Caring for all life under the sun. [8] 2018: Keep Cool and ...
The largest Antarctic ozone hole recorded (September 1985) 2012 retrospective video by NASA on the Montreal Protocol The Montreal Protocol on Substances That Deplete the Ozone Layer [2] 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 Indian Minister of State for Environment, Forest and Climate Change, Shri Prakash Javadekar, addressing at the 21st International Day for the preservation of the ozone layer and the 30th anniversary of the Vienna Convention for the Protection of the Ozone layer, in New Delhi on 16 September 2015.
FILE - In this NASA false-color image, the blue and purple shows the hole in Earth's protective ozone layer over Antarctica on Oct. 5, 2022. Earth’s protective ozone layer is slowly but ...
Following the ozone depletion in 1997 and 2011, a 90% drop in ozone was measured by weather balloons over the Arctic in March 2020, as they normally recorded 3.5 parts per million of ozone, compared to only around 0.3 parts per million lastly, due to the coldest temperatures ever recorded since 1979, and a strong polar vortex which allowed ...
Ozone remains depleted in the midlatitudes of both hemispheres. The global-average total column ozone amount for the period 1997-2001 was approximately 3% below the pre-1980 average values. Models capture the observed long-term ozone changes in northern and southern midlatitudes.
Stephen Oliver Andersen (born 17 January 1948) is the Director of Research at the Institute for Governance & Sustainable Development (IGSD) [1] and former co-chair (1989–2012) [2] of the Montreal Protocol Technology and Economic Assessment Panel (TEAP) where he also chaired and co-chaired Technical Options Committees, Task Forces and Special Reports.
The Vienna Conference was the first international conference on ozone layer depletion. It was held in Vienna, Austria in 1985 when a hole in the stratospheric ozone layer was observed in the South Pole marked by increased UV-B infiltration over Antarctica. A 'hole', marked by significant drop in ozone molecules in the layer, as large as that of ...