The other day Google Earth released updated historical imagery, so I thought it'd be neat to take a peek at two spots I know have grown a lot since 1985, the date of the earliest imagery.
I also wanted a quick and dirty way to make a before/after image slider, as shown on the above post, so I found JustaposeJS, which does just the trick! There are other options if you do want to get fancy.
So here's Calgary:
And here's Ft. McMurray:
From the original post, "Note that the new data is created by blending all Landsat/Sentinel 2 data for a whole year to remove clouds and snow cover. The result is that changes that happen on timescales less than a year, such as seasonal changes, will not be visible."
I could look at stuff like this all day!