UV exposure has increased over the last 30 years, but stabilized since the mid-1990s
Tuesday, March 16, 2010 - 14:07
in Astronomy & Space
NASA scientists analyzing 30 years of satellite data have found that the amount of ultraviolet radiation reaching Earth's surface has increased markedly over the last three decades. Most of the increase has occurred in the mid-and-high latitudes, and there's been little or no increase in tropical regions.