"The fourth IPY comprised an intense, coordinated field campaign of observations, research, and analysis. It was the largest, most comprehensive campaign ever mounted to explore the Earth's polar regions. An estimated 50,000 researchers, local observers, educators, students and support personnel from more than 60 countries were involved in the 228 international IPY projects (170 in scientific research, one in data management, and 57 in education and outreach) and related national efforts. The IPY included intensive research and observation periods in the Arctic and Antarctic over a three-year timespan, which started 1 March 2007 and was formally concluded 12 June 2010 at the IPY Oslo Science Conference. However, many activities continued beyond that date. The IPY Science Program covered eleven areas: Polar atmosphere, Arctic ocean, Southern Ocean, Greenland ice sheet and Arctic glaciers, Antarctic ice sheets, Sub-glacial aquatic environments, Permafrost, Earth structure and geodynamics at the poles, Polar terrestrial ecology and biodiversity, Polar societies and social processes and Human health." - SA Mint
 
Mass: 33.626g
Diameter: 38.725mm
Metal Content: Ag 0.925 Cu 0.075