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This lesson covers the enhanced greenhouse effect, evidence for climate change, effects on biodiversity, and mitigation strategies, as required by the Edexcel A-Level Biology specification (9BI0), Topic 10 -- Ecosystems.
The natural greenhouse effect is essential for life on Earth:
Human activities have increased the concentration of greenhouse gases in the atmosphere, intensifying the natural greenhouse effect and causing global warming -- a sustained increase in the Earth's average surface temperature.
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