Positives

• This video includes an animation of sea level rise if all of the ice sheets on Earth melted and how that would affect the United States.
• It lets students see that there was a scientific understanding about the ability of human actions to cause global warming many decades ago.
  

Additional Prerequisites

• Although scientists understood how global warming happened and that it was happening, there was still uncertainty about the pace, feedbacks, and extent of global warming that would occur.
  
• Teachers could also show The Cost of Carbon video for more recent references and this PBS video is a comprehensive option to show afterwards that also addresses skepticism and some misconceptions.

Differentiation

• Teachers could use this video as a conversation starter about the history of atmospheric science and climate change.
• You could have students research and present the recent data that supports the comments made by the scientist in the video clip.
• Students in social studies, ethics, and economics classes could discuss the reasons why action was not taken earlier to prevent global warming and climate change.
• Have students research which IPCC report first states that climate change is due to human activity and discuss why science always has levels of confidence indicated instead of just making claims of fact.