Why do people with darker skin suffer from sunburn?

Question

I was wondering why sunburn is so prevalent in whites but not people with darker skin like asians and africans

Answer 1

People are darker because of high levels of Melanin. One of the functions of Melanin is to protect the person from sun burns, and the Melanin also pigments the skin. That is why people who live in areas with lots of direct sunlight have darker skin.

Answer 2

Darker pigment in skin protects people from sunburn.
People developed caucasian skin colour because they were living in the north where sunburn was no longer an issue, and lighter skin increases the amount of Vitamin D we absorb, I believe.