Our use of ozone-depleting substances such as chlorofluorocarbons (CFCs) had torn a hole in the ozone layer that protects us from the sun’s harmful ultraviolet radiation. United Nations ...

In recent years, scientists had been alarmed by a sudden unexplained rise in ozone attacking chemicals in the atmosphere. Higher levels of trichlorofluoromethane, also known as CFC-11, were ...

This patent covers PyroGenesis’ process for the destruction of ozone-depleting substances ... refrigerants such as CFCs, HCFCs, and HFCs, which are known for their high global warming potential ...

In contrast to chemicals containing chlorine and bromine, nitrogen oxides destroy ozone globally between 25 and 35 km. Nitrous oxide behaves in a similar way to chlorofluorocarbons (CFCs): it is ...

Nov. 21, 2023 — Despite public perception, the Antarctic ozone hole has been remarkably massive and long-lived over the past four years; researchers believe chlorofluorocarbons (CFCs ...

Trace amounts of ozone-destroying chlorofluorocarbons (CFCs) were also found by the team from the University of Toronto. Researcher Dr David Ellis said: 'We know that these compounds do not easily ...

Tapping across the Tappan Zee, Marc This newsletter’s title is borrowed from the 1993 album “Not for Kids Only,” in which Garcia — you know, Jerry Garcia — and David Grisman, a folk ...

Senior writer John Oehser answers your questions.

Lonnie Johnson was brought up in Mobile, Alabama in the 1960s, when Black children were not expected to go far. But such was his talent for engineering that he worked for NASA, and helped test the ...

High sugar cereal brands target TV ads directly to kids under age 12. And this targeted advertising leads to greater household purchases of unhealthy kid cereals, a new study finds. KUOW is ...