The Antarctic ozone hole was expected to gradually close, returning to 1980 levels in the 2060s, the report said. 'Evidence presented by the authors shows that the ozone layer in parts of the ...

In the 1970s and 80s, a series of pioneering experiments showed that CFCs were destroying ozone in the earth’s stratosphere and, in particular, creating a gaping hole in the layer above Antarctica.

She said: “In Australia, for example, before 2000 in the ozone-depletion era, it was suggested that winters were drying because the jet stream was moving further south and taking rain-bearing ...

In the 1970s, it was recognized that chemicals called CFCs, used for example in refrigeration and aerosols, were destroying ozone in the stratosphere.

The purple and blue colors are where there is the least ozone, and the yellows and reds are where there is more ozone. The hole in the ozone layer was discovered 40 years ago, in May 1985.© NASA ...

The process is sluggish: The ozone layer kept thinning in the 1980s and 1990s, even after the big agreement to phase out CFCs. In 2006, another major hole appeared.

If current policies remain in place, the panel found, the ozone layer should recover by around 2040 for most of the world, by 2045 over the Arctic, and by 2066 over the Antarctic.

Chemicals known as CFCs, which are found in aerosols for example, have been destroying the ozone layer since the 1970s. The Montreal Protocol was agreed in 1987 to phase out CFCs, but researchers ...

A United Nations report released on Monday, Nov. 5, 2018 says Earth's protective ozone layer is finally healing after aerosol sprays and coolants ate away at it. (NASA via Associated Press) ...

The hole in the Earth's protective ozone layer above Antarctica will be very big this year — and it will be big again in 2020 — contrary to previous predictions, argues a Canadian researcher.