Tag «ozone»

Ozone depletion | Wikipedia audio article

Ozone depletion | Wikipedia audio article

Ozone depletion describes 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 (the ozone layer), and a much larger springtime decrease in stratospheric ozone around Earth’s polar regions. The latter phenomenon is referred to as the ozone hole. There are …

The Ozone Layer – Part 2 | English

The Ozone Layer – Part 2 | English

In this video you will learn about the famous hole in the ozone layer and why it has got thinner? We will also look at the action the world has taken, to restore it back to health. To find out how stratospheric ozone is made and how it stops harmful UV from reaching the ground, …

Tropospheric ozone – Summers of smog

Tropospheric ozone  – Summers of smog

NARRATOR: Local weather forecast warnings about unhealthy air could become much more common around the country. A recent study by the National Center for Atmospheric Research warns of a whopping 70% increase in the number of days with unhealthy summertime ozone levels by the year 2050. The culprit is ozone pollution, not the beneficial ozone …

Ozone layer | Wikipedia audio article

The ozone layer or ozone shield is a region of Earth’s stratosphere that absorbs most of the Sun’s ultraviolet radiation. It contains high concentration of ozone (O3) in relation to other parts of the atmosphere, although still small in relation to other gases in the stratosphere. The ozone layer contains less than 10 parts per …

New Threats to Earth’s Ozone Layer

New Threats to Earth’s Ozone Layer

Narrator: There’s a new class of chemical compounds impacting the Earth’s ozone layer and raising concerns among some scientists, but a new NASA analysis indicates stratospheric ozone could actually be impacted more by climate change and the continued release of already-banned chemicals. The Earth’s ozone hole is showing signs of recovery, decades after the landmark …

What Hole In the Ozone Layer?

What Hole In the Ozone Layer?

[Intro Music] (CC: Tang) During the late 1800s, at the University of Ghent in Belgium, a chemist by the name of Frédéric Swarts laid the foundation for Alliphatic Fluorine Chemistry, or the study of organic molecules with Carbon-Fluorine bonds. Also, I apologize to all of the prescriptivists out there. He prepared the first CFC, or …

Summer heat, ozone, and UV radiation_061719

Summer heat, ozone, and UV radiation_061719

good afternoon expect a similar weather pattern to what we had over the weekend afternoon highs will be slightly lower than Sunday for here in the capital but southern provinces will be hotter under sunny skies and throughout the day today and those parts will have high to very high UV rays while parts of …

Montreal Protocol | Wikipedia audio article

Montreal Protocol | Wikipedia audio article

The Montreal Protocol on Substances that Deplete the Ozone Layer (a protocol to the Vienna Convention for the Protection of 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. It was agreed on 26 August 1987, and …