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Global warming is caused by human activities like burning fossil fuels and deforestation, which increase carbon dioxide emissions. As the planet warms, ice caps melt, reducing the Earth's ability to reflect heat. This causes additional warming in a reinforcing cycle. Effects of global warming include rising sea levels from melting ice caps and glaciers, expanding deserts, and increased extreme weather events.





Introduces global warming as rising average temperatures of Earth's atmosphere and oceans.
Explains major causes including fossil fuel use and deforestation, highlighting human impact.
Describes melting ice caps, increasing evaporation, desert expansion, and related environmental impacts.