Encyclopedia of Global Resources part 111 provides a wide variety of perspectives on both traditional and more recent views of Earth's resources. It serves as a bridge connecting the domains of resource exploitation, environmentalism, geology, and biology, and it explains their interrelationships in terms that students and other nonspecialists can understand. The articles in this set are extremely diverse, with articles covering soil, fisheries, forests, aluminum, the Industrial Revolution, the . Department of the Interior, the hydrologic cycle, glass, and placer mineral deposits. . | 1028 Rhenium Global Resources RFF s mission has expanded to include hazardous waste mitigation climate change biodiversity and ecosystem management. RFF researchers have been influential members of the Intergovernmental Panel on Climate Change IPCC and have helped in the formulation of . climate policy. Thomas A. Wikle Web Sites Resources for the Future http Pages Weathervane A Climate Blog from Resources for the Future http See also Biodiversity Climate and resources Ecosystem services Ecosystems Greenhouse gases and global climate change Hazardous waste disposal Resources as a medium of economic exchange Sustainable development. Rhenium Category Mineral and other nonliving resources Where Found Rhenium is widely distributed in the Earth s crust in small amounts. In the United States the richest concentrations of rhenium are found in molybdenum ores in Arizona Utah and New Mexico. The major world producer is Chile followed by Kazakhstan the United States and Peru. Primary Uses Rhenium is mostly used for applications in which a high melting point and strength at high temperatures are important as in high-temperature thermocouples. It has also found use as a catalyst and in electronic components. Technical Definition Rhenium abbreviated Re atomic number 75 belongs to Group VIIB of the periodic table of the elements and resembles manganese in its chemical and physical properties. It has two naturally occurring isotopes and an average atomic weight of . Pure rhenium is a hard dense silvery-white metal. Its den sity is grams per cubic centimeter it has a melting point of 3 170 Celsius and a boiling point of 5 630 Celsius. Description Distribution and Forms Rhenium is a rare but widely distributed element resembling manganese. It usually occurs in a concentration of about 1 part per billion but in molybdenum ores it may be found in a concentration as high as 20 parts per million. It is used with tungsten .
