Every person needs to beware of the sun. There are of course health reasons; skin cancer has approximately 15,000 new cases diagnosed each year. Although survival rates are high, this mostly preventable disease is not something to be messed with.
Sustainability. Straight in there. Said it. Not really a crowd-pleaser of an intro...the mere utterance of the word usually incites a long, world-weary (oh the irony!) and sustained (yup, that did just happen) sigh.