Ozone Layer
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Earth’s ozone layer is slowly healing, UN says. When will it fully recover?A once-every-four-years scientific assessment found recovery in progress, more than 35 years after every nation in the world agreed to stop producing chemicals that chomp on ozone.ScienceJan 9, 2023
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Canadian scientist says he’s found a huge ozone hole over the tropicsQing-Bin Lu, a professor at the University of Waterloo, says the ozone hole is seven times the size of the well-known Antarctic ozone hole that emerges during spring.EnvironmentJul 6, 2022
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Deal to protect ozone layer may have sparked new contamination issueCanadian researchers have found the chemicals used to replace the banned ones are creating issues of their own.CanadaMay 14, 2020
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Ozone layer repairing, redirecting wind flows, new study saysNew research finds a hole in the ozone layer above Antarctica has continued to recover, leading to changes in atmospheric circulation.TrendingMar 26, 2020
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Earth’s ozone layer is slowly healing, UN report saysA United Nations-backed report suggests the Earth's protective ozone layer is slowly recovering, due to lower concentrations of harmful greenhouse gases.EnvironmentNov 5, 2018
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McKenna says amendment signed to Montreal ProtocolThe Montreal Protocol was an international agreement signed on Sept. 16, 1987.PoliticsNov 20, 2017
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Canada’s pea and lentil pesticide problem with IndiaCanada's producers of peas and lentils are preparing for the possibility that their largest market may soon shut down imports because of a purported problem with pests.MoneyFeb 16, 2017
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Four new gases found in ozone layerNew research has found four new gases in the atmosphere that could potentially contribute to the depletion of the ozone layer -- and their source is unknown.EnvironmentMar 10, 2014
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