Melanomas aren't very good for you either.
The ill effects of melanomas are widely acknowledged and well documented. The ill-effects of sunscreen are subject to debate.
I was looking into sunscreens recently and found this article saying that there hasn't actually been a proven reduction in melanoma rates over the past 30 odd years. Food for thought. It was an American article though.

http://www.ewg.org/2013sunscreen/9-s...out-sunscreen/

A bit off topic for this thread I guess. But I am going to look into 'healthier' sunscreens for use though.