Global warming

• What are the two terms often associated with environmental issues discussed in the video?

  Global warming and climate change
• What is the primary difference between global warming and climate change?

  Global warming refers to temperature rise; climate change refers to its effects
• What role does the atmosphere play for life on Earth?

  It acts as an insulating blanket
• How does the temperature of the moon compare to Earth due to the lack of atmosphere?

  The moon experiences extreme temperature variations
• What happens to the sun's heat energy when it reaches the Earth's surface?

  Some is absorbed, most is re-emitted or reflected
• What occurs to the energy that is re-emitted by gas particles in the atmosphere?

  It is sent in random directions
• Why does heat energy stay close to Earth longer with an atmosphere?

  It is absorbed and re-emitted repeatedly
• What are greenhouse gases responsible for?

  The greenhouse effect and global warming
• How has the strength of the greenhouse effect changed over Earth's history?

  It has grown and shrunk repeatedly
• What gases are primarily responsible for the current increase in the greenhouse effect?

  Carbon dioxide and methane
• What is the current trend in Earth's temperature over the past century?

  It has increased by almost one degree
• What does the term climate refer to?

  Long-term weather patterns
• What are some consequences of global warming on weather events?

  More common and severe rare weather events
• What are the two reasons for sea level rise due to global warming?

  Melting ice and thermal expansion of water
• How does melting ice contribute to sea level rise?

  It flows into the ocean, increasing volume
• What happens to ocean water as it warms up?

  Its volume increases, causing sea level rise
• What impact does climate change have on wild organisms?

  Species may not survive changing conditions
• How are some species responding to climate change?

  They are migrating towards cooler poles
• What is the likely future trend for biodiversity due to climate change?

  Biodiversity is likely to fall dramatically
• What should viewers do if they enjoyed the video?

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