Ozone ‘Hole’

CFC Bans Did Nothing To Interrupt The Ongoing Trend Of Antarctic Ozone Losses

CFC Bans Did Nothing To Interrupt The Ongoing Trend Of Antarctic Ozone Losses

There has been a “continued, significant ozone reduction since 2004, amounting to 26% loss in the core of the ozone hole” (Kessenich et al., 2023). It is not at all evident that the 1987 Montreal Protocol bans on presumed ozone-depleting substances (ODS) like chlorofluorocarbons (CFCs) materially affected the flat to negative trajectory of stratospheric ozone over […]

Gigantic Ozone Hole - 7 Times Larger Than Antarctica's - Widens Over The Tropics

Gigantic Ozone Hole – 7 Times Larger Than Antarctica’s – Widens Over The Tropics

The increasing loss of ozone (O3) from 3o°N – 30°S has steadily accelerated since the early 1980s despite the 1987 Montreal Protocol’s ban on so-called “ozone depleting substances” like chlorofluorocarbons (CFCs). Once again this suggests human activity does not drive ozone losses. Twenty years after the Montreal Protocol agreement limiting or banning CFC use scientists […]

Flashback 2007: Scientists Reveal They 'No Longer Understand How Ozone Holes Come Into Being'

Flashback 2007: Scientists Reveal They ‘No Longer Understand How Ozone Holes Come Into Being’

Ozone Measurement Error   ‘Shatters’ Established Theory It was 10 years ago this month that scientists revealed an order-of-magnitude-sized error in molecular chemistry measurement that threatened to severely undermine the commonly accepted explanation for  how ozone depletion occurs. The iconoclastic discovery fomented “much debate and uncertainty in the ozone research community.”    The mechanism that causes polar […]

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