GCSE Biology (AQA)

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Global Warming

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Ecology Biodiversity and the Effect of Human Interaction on Ecosystems

Global Warming

1:41 Global Warming and other Human Impact on Biodiversity
Spec 4.7.3.5
Previous Deforestation Next Effects of Global Warming
  • Global warming refers to the gradual increase in Earth's temperature, leading to climate change.
  • Earth's temperature has fluctuated but has significantly increased over the last 200 years.
  • A graph shows temperature and CO2 levels over the last 1000 years, indicating significant upward trends in recent times.
  • The role of humans in this temperature increase is debated due to various influencing factors.
  • Scientists have reached a consensus on global warming through analysis of thousands of peer-reviewed publications.
  • The consensus attributes global warming to increased emissions of greenhouse gases.
  • The atmosphere now contains more greenhouse gases, which trap heat and warm the Earth.
  • Greenhouse gases, such as carbon dioxide and methane, are primarily released by human industrial activities.
  • For educational purposes, carbon dioxide and methane are essential examples of greenhouse gases to know.

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