The podcast explores the accidental discovery of the ozone hole in May 1985, discusses the environmental crisis it posed, and delves into the experiences of the man who discovered it and his work in Antarctica. It also explores the significance of the ozone layer, the unique wildlife and scenery in the Antarctic, and the early days of computer use in scientific research. The comparison of ozone data reveals a significant drop in October ozone levels, suggesting a problem with the analysis or underlying conditions.
The discovery of the ozone hole in Antarctica challenged previous beliefs and led to further investigation and understanding of its phenomenon.
The measurements taken in the 1950s revealed a concerning trend of decreasing ozone levels, particularly during the Southern Hemisphere Spring, raising alarm and increasing awareness about the ozone hole.
Deep dives
The Discovery of the Ozone Hole
Jonathan Shanklin, a recent graduate, stumbled upon the ozone hole in 1977 while working at the British Antarctic Survey. He noticed a decline in ozone levels above Antarctica, which contradicted previous beliefs that the damage would occur elsewhere. Alongside colleagues Joe Farmer and Brian Gardner, they began to investigate whether the ozone layer was truly changing. This accidental discovery would lead to further exploration and understanding of the ozone hole phenomenon.
Importance of Ozone Layer and Rising Concerns
The ozone layer, a thin gas located 15-35 kilometers above the Earth's surface, plays a vital role in protecting life on Earth from harmful radiation. However, the measurements taken by the British Antarctic Survey in the 1950s showed a concerning trend of decreasing ozone levels, especially during the Southern Hemisphere Spring. Jonathan Shanklin's analysis revealed that the October ozone levels had dropped by approximately 50% in less than 10 years, indicating a systemic change. These findings raised alarm and led to increased awareness and concern about the ozone hole.
You can listen to the part of our first episode of our new season today. The full episode is out on Tuesday, October 3rd. After that, we will be dropping a new episode every Tuesday.
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