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The Earth's ozone layer protects life from harmful ultraviolet radiation from the sun, but human activities in the 20th century led to its depletion. This has resulted in an increase in skin cancer and cataracts. In addition, emissions of greenhouse gases such as carbon dioxide, methane, and nitrous oxides are causing global warming and its consequences, including melting polar ice caps, sea level rise, and reduced living space and resources for humans and animals. To address these issues, strict laws and controls on emissions are necessary, along with the development of energy-saving technologies and renewable energy sources. Our daily choices, such as traveling by car or wasting energy and water, can also contribute to reducing greenhouse gas emissions.
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Crynhoi testun
Crynhoi testun o ffeil
Crynhoi testun o'r wefan
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Earth ozone
century led
ozone layer
layer protects
protects life
harmful ultraviolet
ultraviolet radiation
human activities
Earth
Sun
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