Ah Banff, the quintessential Canadian holiday spot, which in days of yore could be counted on for picture perfect winter vistas and glassy frozen lakes, before the ravages of global warming wrecked everything. Or did it? You be the judge. Here are the daily average temperatures from two weather stations close by each other in Banff AB, one from the year 1919 and one from 2019. A CDN reader asked us to differentiate them not just by colour but by solid versus dashed to help those who are colour blind. So here they are, one gray (solid) and one black (dashed). Which one is last year and which one was a hundred years ago?
Here's the answer:
1919 is the solid gray line, 2019 is the dashed black one. How did you do? When you took your guess, was it anything other than a guess? Probably not, because the two lines don't look very different.