Bear in mind that this study is about the UK, and London is on the same latitude as Calgary, give or take.

The sun does get strong enough to burn here, but not for much of the year - especially considering the relatively high % cloud cover (not Seattle high maybe, but high). Skin cancer cases here are AFAIK most commonly related to overseas travel or people with outdoor lifestyles in the southwest of the country.

> but not for much of the year

Speak for yourself. Thanks to my Celtic genetics, I get sunburnt if I put my phone brightness too high. ;)