Yeah but, it was something else that made this "white skin" to happen. It couldn't have been just evolution because there would be snow in these areas, and you still need dark skin to protect against the uv light bouncing off of the snow. If anything its more concentrated when the sunrays hit something highly reflective like snow or water, so they should have kept their color. They would have gotton lighter because of the areas being further away from the equator but not enough to lose damn near all of your melanin.
They use the term light skin in these articles(this isn't the first time this has been known. I read an article from 2-3 years ago) to ignore the fact that it isn't just light skin, it almost melaninless. That doesn't sound like something nature would do. Have you seen the video of people under a UV bulb, and how the sun sees them? The whites, had horrible skin, while the brown people of all shades didn't. I think something major happened but, we aren't told about it because it would fukk up those in power. That's another topic though.
And no, I don't hate white people. Just in case you are one of those who call you militant or hate whites when you question anything about whites?