Climate change economics

Welcome to the fifth episode of the Environmental Economics course! Building upon our previous discussions on environmental economics, externalities, public goods, and pollution, this episode delves into the critical intersection of economics and climate change. We will explore how climate change presents unique economic challenges, acting as a massive, global externality. The episode analyzes the concept of the social cost of carbon, market failures related to greenhouse gas emissions, and the economic impacts of a warming planet. This understanding is essential for evaluating policy options like carbon taxes and cap-and-trade systems, which will be covered in future episodes. Grasping these concepts will lay a strong foundation for comprehending how economic tools can be used to mitigate and adapt to the impacts of a changing climate.

Check your understanding

These are the same multiple-choice questions you will see in the Quiz section after you listen to the episode. Use them here to preview or review the answers.

Why is climate change considered a market failure?

  1. Because it is caused by natural processes, not human activities.
  2. Because greenhouse gas emissions are a global externality.
  3. Because the costs of climate change are evenly distributed across the globe.
  4. Because governments have already implemented effective policies to address it.
  5. Because the market efficiently allocates resources for climate mitigation.
  6. Because it has no visible effect.

What does the 'social cost of carbon' (SCC) represent?

  1. The total amount of carbon dioxide in the atmosphere.
  2. The cost of removing a ton of carbon dioxide from the atmosphere.
  3. The long-term damage done by a ton of carbon dioxide emissions.
  4. The price of carbon credits in a cap-and-trade system.
  5. The tax revenue generated from a carbon tax.
  6. The market valuation of carbon-based fuels.

Which of the following are considered economic impacts of climate change?

  1. Damage from increased frequency of extreme weather events.
  2. Reduced agricultural yields.
  3. Decreased health risks due to warmer temperatures.
  4. Increased global economic equality.
  5. Disruptions to water supplies.
  6. Stable and predictable weather patterns.

Why is the discount rate important in climate change economics?

  1. It determines the rate at which carbon emissions are taxed.
  2. It reflects how we value the well-being of future generations compared to our own.
  3. It is used to calculate the social cost of carbon.
  4. It measures the rate of technological progress in renewable energy.
  5. It determines the price of fossil fuels.
  6. It sets the emissions cap in a cap-and-trade scheme.

Which regions/sectors are most vulnerable to the impacts of climate change?

  1. High-altitude mountainous regions.
  2. Low-lying coastal areas.
  3. Countries with economies heavily reliant on agriculture.
  4. Technologically advanced, diversified economies.
  5. Regions with abundant freshwater resources.
  6. Areas with historically stable climates.

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