AQA · Biology · 8461
GCSE Biology: Global warming
Ecology · AQA GCSE Biology (8461), specification point 4.7.3.5. Cards are generated from the exam board's own specification for "Global warming", and every card links back to the page it came from. Specification © AQA — used with attribution.
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Which two atmospheric gases are increasing and contributing to global warming?
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Carbon dioxide and methane.
What is the general trend in atmospheric carbon dioxide levels?
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They are increasing.
What is the scientific consensus on global warming based on?
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Systematic reviews of thousands of peer-reviewed publications.
Why can evidence about global warming be uncertain or incomplete?
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Because climate is a complex context with many interacting factors, so data and models cannot capture everything.
What is meant by 'global warming'?
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The increase in the Earth's average temperature, linked to rising levels of greenhouse gases such as carbon dioxide and methane.
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