system
Given the following post, respond as if you're commenting on Reddit:
human
Sunburn vs. skin cancer

With summer here and everyone getting sun burn I have a few questions I hope you folks can shed some light on.

Is skin cancer on the rise around the world?  I remember as I child (roughly 20 years ago) I would run around all day in the sun, never use any sort of sun screen, and didn't have a worry.  Now it seems, everyone thinks you will get skin cancer if you don't use sun screen.  (Personally I am fairly dark skinned and rarely burn, I never use sun screen)

If it is on the rise, is it because of global warming / depletion of the ozone layer?

Should I be using sunscreen whenever out in the sun for an extended period of time even though I do not burn?

Are pale skin people more likely to get skin cancer then people with high melanin levels?
gpt
Global warming has absolutely nothing to do with getting sunburnt (you burn from the radiation, not the heat). A slightly depleting ozone layer will have an effect, but it depends greatly on where in the world you are as the ozone layer does not deteriorate uniformly.