Unusual polar vortex appears in Antarctica
Unusual warming and a strange polar vortex this year have changed the cycle of the ozone hole. Don't celebrate too soon, scientists warn.
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Unusual warming and a strange polar vortex this year have changed the cycle of the ozone hole. Don't celebrate too soon, scientists warn.
In the early 20th century, Thomas Midgley Jr. personally demonstrated the safety of leaded gasoline and CFC refrigerants, making them commercially successful.
The global effort to protect the ozone layer has finally begun to have positive results. The recent United Nations report confirms this.
A new study found that four new artificial gases have appeared in the atmosphere.
Vietnam has achieved remarkable results in gradually restricting the use of ozone depleting substances.
Starting from January 1, 2010, all CFCs (clorofluorocarbon) degrade ozone layer will be banned from importing into Vietnam.
The Earth's ozone layer is slowly recovering from international efforts in the last 20 years. However, by the end of the century, the ozone layer still seemed to not be…