Global Warming & Climate Change

• What are the two terms often used interchangeably regarding climate issues?

  Global warming and climate change
• What is the role of the atmosphere in relation to the Earth's temperature?

  It acts like an insulating blanket
• How does the sun's heat energy reach the Earth?

  In the form of short wavelength radiation
• What happens to the sun's heat energy after it hits the Earth's surface?

  Some is absorbed, most is re-emitted
• What is the process by which energy is absorbed and re-emitted by gas particles in the atmosphere?

  It happens repeatedly, keeping heat close
• What are greenhouse gases?

  Gases that trap heat in the atmosphere
• What is the greenhouse effect?

  The warming caused by greenhouse gases
• What human activities are increasing carbon dioxide levels?

  Burning fossil fuels and deforestation
• How does deforestation contribute to rising carbon dioxide levels?

  It reduces photosynthesis, which removes CO2
• What are the two main reasons for increasing methane levels?

  Farm animals and waste decomposition
• Why is it certain that the Earth is getting warmer?

  Records show a steady increase over centuries
• What does climate change refer to?

  Effects of global warming on climate
• What does the term 'climate' describe?

  Long-term weather patterns across the planet
• What are some consequences of global warming?

  More common and severe weather events
• What causes sea level rise due to global warming?

  Melting ice and expanding ocean water
• How does warming water contribute to sea level rise?

  It expands, increasing water volume
• What impact does climate change have on wild organisms?

  Species may struggle to survive or adapt
• What is likely to happen to biodiversity in the coming decades?

  Biodiversity is likely to fall dramatically
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