58:2.2 The [[earth]]'s [[atmosphere]] is all but [[opaque]] to much of the [[solar]] [[radiation]] at the extreme [http://en.wikipedia.org/wiki/Ultraviolet ultraviolet] end of the [[spectrum]]. Most of these short [http://en.wikipedia.org/wiki/Wave_length wave lengths] are absorbed by a layer of [http://en.wikipedia.org/wiki/Ozone ozone] which exists throughout a [[level]] about ten miles above the [[surface]] of the [[earth]], and which extends spaceward for another ten miles. The ozone permeating this region, at conditions prevailing on the [[earth]]'s [[surface]], would make a layer only one tenth of an inch thick; nevertheless, this [[relatively]] small and [[apparently]] insignificant amount of ozone protects [[Urantia]] [[inhabitants]] from the excess of these [[dangerous]] and destructive [http://en.wikipedia.org/wiki/Ultraviolet ultraviolet] [[radiation]]s present in [http://en.wikipedia.org/wiki/Sunlight sunlight]. But were this [http://en.wikipedia.org/wiki/Ozone ozone] layer just a trifle thicker, you would be deprived of the highly important and [[health]]-giving [http://en.wikipedia.org/wiki/Ultraviolet ultraviolet] rays which now reach the [[earth]]'s [[surface]], and which are [[ancestral]] to one of the most [[essential]] of your [http://en.wikipedia.org/wiki/Vitamins vitamins]. | 58:2.2 The [[earth]]'s [[atmosphere]] is all but [[opaque]] to much of the [[solar]] [[radiation]] at the extreme [http://en.wikipedia.org/wiki/Ultraviolet ultraviolet] end of the [[spectrum]]. Most of these short [http://en.wikipedia.org/wiki/Wave_length wave lengths] are absorbed by a layer of [http://en.wikipedia.org/wiki/Ozone ozone] which exists throughout a [[level]] about ten miles above the [[surface]] of the [[earth]], and which extends spaceward for another ten miles. The ozone permeating this region, at conditions prevailing on the [[earth]]'s [[surface]], would make a layer only one tenth of an inch thick; nevertheless, this [[relatively]] small and [[apparently]] insignificant amount of ozone protects [[Urantia]] [[inhabitants]] from the excess of these [[dangerous]] and destructive [http://en.wikipedia.org/wiki/Ultraviolet ultraviolet] [[radiation]]s present in [http://en.wikipedia.org/wiki/Sunlight sunlight]. But were this [http://en.wikipedia.org/wiki/Ozone ozone] layer just a trifle thicker, you would be deprived of the highly important and [[health]]-giving [http://en.wikipedia.org/wiki/Ultraviolet ultraviolet] rays which now reach the [[earth]]'s [[surface]], and which are [[ancestral]] to one of the most [[essential]] of your [http://en.wikipedia.org/wiki/Vitamins vitamins]. |