An international team of researchers has assembled the first global map of magnetic peculiarities, or anomalies, dispersed around the globe. These magnetic anomalies are caused by differences in the magnetism of rocks within the crust of the Earth. This map is the result of many years of negotiations to gather confidential data from many governments and organizations. The unique magnetic signature of Earth’s crust has long been measured by numerous groups, but this map marks the first time a true worldwide view of the phenomena are available. Find more details, or order a DVD copy, go to the Commission for the Geologic Map of the World’s website.Mountain rimed valleys and isolated caves form some of the world’s natural test sites. Share your testing questions and experiences at the Testing Community Forums.