• This page shows a graph of historical data (including the most recent measurements) of the minimum amount of Arctic sea ice each year.
• The page also includes the average rate of change over time and an interactive map visually showing the changes in Arctic sea ice over time.

• Graphs and text are straightforward and easy to understand.
• The time-lapse video is very powerful.

• The data is in square kilometers. 

• This is a great resource to use as a hook for a lesson or unit on climate change or habitat degradation.

• This resource can also be used as an introduction to and/or an example of positive (self-reinforcing) feedback loops.
• Connections can be made to the loss of habitat for Arctic species and the effects of the change in energy balance as the albedo of the Arctic changes.

The visuals show a decline in Arctic sea ice due to global warming. The resource is valid, datasets used are accurate, and this resource is recommended for teaching.

This resource addresses the listed standards. To fully meet standards, search for more related resources.