More people, more heat

the first global analysis of satellite data by the National Aeronautics and Space Administration ( nasa ) has revealed an interesting finding. Collating 15 years of data, scientists have come to the conclusion that harmful radiation from the sun has been hitting major population centres across the world in increasing amounts.

"The increases are largest in the middle and high latitudes where most people live and where there is the majority of agricultural activity,' stated the study which was published in a recent issue of Geophysical Research Letters. nasa 's researchers believe that if the trend continues, it could result in the concomitant increase of skin cancers and cataracts in humans.