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ozone depletion
Kigali Amendment Hits Milestone 100th Ratification, Boosting Climate Action
The Kigali Amendment to the Montreal Protocol, an international agreement to cut the use of climate-warming hydrofluorocarbons (HFCs), has reached a major milestone, with Liberia becoming the 100th nation to ratify the Amendment, providing a welcome boost to global climate…
Arctic Ozone Depletion Reached Record Level
Depletion of the ozone layer, the shield that protects life on Earth from harmful levels of ultraviolet radiation, reached an unprecedented level over large parts of the Arctic this spring. This phenomenon was caused by the continuing presence of ozone-depleting substances…
Arctic Ozone Depletion Tracks at Record Levels
Depletion of the ozone layer, the shield that protects life on Earth from harmful levels of ultraviolet radiation, is at an unprecedented level over large parts of the Arctic this spring. This phenomenon is caused by the continuing presence…
Antarctic Ozone Hole Is Smallest on Record
In 2019, the hole that developed in the ozone layer over Antarctica was the smallest on record since the ozone hole was first discovered, according to scientists at NASA and the US National Oceanic and Atmospheric Administration. In an average…