If you go to the link above, you will be able to access the Interactive Sea Ice Extent Graph without leaving the Habitable Zone Environment. Just highlight the URL, right click on your mouse, and scroll down to the GO TO option on the pulldown menu. If that doesn’t work, cut and paste the link into your browser.
he Interactive Graph allows you to display the SIE curves for all the years the satellites have been monitoring the poles, to highlight or suppress any particular year of interest, zoom in or out, and otherwise analyze the history of the Polar Melt since 1979. This is real data, not modelling, gathered from one sensor and it displays one parameter, Sea Ice Extent as it varies from month to month, and year to year. No interpretation or processing is required, You will get a graphical presentation of what is happening to the SIE at the poles over the years as well as seasonally. This is the most dramatic and effective way I can think of to convince skeptics just how urgent this crisis is.
The default graph will display only the current year up to the current day (a blue line) and the record summer low-ice year (2012), a dashed red line. Other years can be turned on and off as desired. Sea Ice Extent is defined as any pixel that is at least 15% ice covered. This rather arbitrary definition was selected because it is less volatile than other metrics, and more realistic in its portrayal of long term trends. SIE does exhibit natural variation because of winds and currents on the surface, but remember, its the trends that matter, not any one particular year. For some reason, this particular feature appears very difficult for the non-science/math oriented person to process, so you may have to explain it to others.
For starters, I suggest you start by only turning on every 10th year (starting with the first year the satellite flew, 1979) so you can get an idea of the overall trend for the last few decades. An alternative exercise is to turn on just the last ten years and see how the trend appears to be picking up speed.
Bookmark the link so you can then at any time totally demolish your annoying climate change denialist Trumper uncle.