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Ozone Layer News and Articles 1. Ozone Layer Repair Could Take Decades, Scientists Warn Scientists are warning that the ozone layer, which protects Earth from harmful UV rays, could take decades to repair. They recently published their findings in the journal Nature. The research team analyzed data from satellites, aircraft and ground stations to estimate the current levels of ozone. They found that, despite the Montreal Protocol, which was introduced in 1987 to phase out the use of ozone-depleting substances, the ozone layer will remain depleted until 2050 or beyond. The team also cautioned that unexpected events, such as volcanic eruptions, could slow down the healing process. 2. Scientists Discover Hole in the Ozone Layer Above the Arctic Scientists have discovered a hole in the ozone layer above the Arctic. The discovery was made during a research mission led by the University of Toronto. According to the team, the ozone layer has been thinning since the 1970s due to the use of chlorofluorocarbons (CFCs). The hole is the result of a combination of cold temperatures and the presence of CFCs in the atmosphere. The team warns that this could have serious consequences for the environment and human health.