Mercury's surface in "enhanced color," a color scheme created to emphasize color differences. This is not what Mercury would look like to the human eye, but by applying mathematical analysis to images, color differences can be accentuated beyond those visible to a person.
Mount Rushmore National Memorial under construction.
The workers had to endure conditions that varied from blazing hot to bitterly cold and windy. Each day they climbed 700 stairs to the top of the mountain to punch-in on the time clock. Then 3/8 inch thick steel cables lowered them over the front of the 500-foot face of the mountain in a "bosun chair." Despite the dangers, no one was killed during the project.
Otters in Glacier Bay National Park and Preserve, Alaska.
The sea otter population of Glacier Bay has increased dramatically in the past 20 years. Ecologists consider sea otters a keystone species here. Otters consume vast quantities of clams, urchins, crabs, and other invertebrates and their presence creates ripples through the ecosystem. NPS photo.
Every day someone like you becomes a wildland wildfire fighter, a teacher, a trail-builder, a museum curator, or a park ranger. Discover your opportunities in national parks. Come to play. Come to learn. Come to serve. Develop your environmental leadership skills. Find a job. Be the next generation to preserve and protect these great places.
With more than 80% of Americans living in urban areas, urban parks are more important than ever. The father of American landscape architecture, Frederick Law Olmsted, said of urban parks:
It is one great purpose of the Park to supply to the hundreds of thousands of tired workers, who have no opportunity to spend their summers in the country, a specimen of God's handiwork that shall be to them, inexpensively, what a month or two in the White Mountains or the Adirondacks is, at great cost, to those in easier circumstances.
Trustees Settle Natural Resource Damage Claims Arising from Hazardous Substances Releases at Morenci Mine, Greenlee County, Arizona
Last edited 2/14/2017
The Morenci Mine site, near Clifton, in Greenlee County in southeastern Arizona, includes operational features such as open pits and tailings impoundments, as shown here in 2008, that released hazardous substances causing injuries to natural resources. Photo credit: Arizona Geological Survey.
On June 29, 2012, the U.S., on behalf of Department of the Interior, and the State of Arizona settled natural resource damage claims with Freeport-McMoRan Corporation arising from hazardous substances releases at the Morenci Mine, an open-pit copper mining site near Clifton, Greenlee County, in southeastern Arizona. This settlement is embodied in a Consent Decree that was entered with the U.S. District Court for the District of Arizona.
The natural resource trustees in this case include:
State of Arizona, represented by Department of Environmental Quality; and,
Department of the Interior, represented by Bureau of Indian Affairs, Bureau of Land Management, Bureau of Reclamation and U.S. Fish and Wildlife Service.
Altogether, the Morenci Mine site includes a large complex of open pits, numerous leach rock stockpiles, development rock stockpiles, ore and solution beneficiation plants, tailings impoundments, uncovered ponds, five historic smelters, historic underground mine workings and surface openings. Surface water flows from the site drain into the San Francisco River and Gila River watersheds.
The trustees determined that hazardous substances releases from and at the mining site -- including sulfuric acid and dissolved metals such as arsenic, beryllium, cadmium, chromium, cobalt, copper, lead, manganese, mercury, nickel, selenium and zinc -- have caused injuries to natural resources and natural resource services. These hazardous substances were released through acid rock drainage, process solutions, windblown material, waste material and other sources. Injured natural resources include surface water, sediments, soils, terrestrial habitats, terrestrial receptors and migratory birds.
Under the final settlement in the entered Consent Decree, Freeport-McMoRan will:
Pay $6,701,861.30 to be used by the natural resource trustees to plan and implement projects designed to restore, replace and/or acquire the equivalent of wildlife and wildlife habitat inured by the hazardous substances releases; and,
Pay $98,138.70 for DOI’s past assessment costs not already paid.
DOI has already been reimbursed $842,483.80 for past cooperative assessment costs.
The natural resource trustees, acting through a Trustee Council that will include Arizona Game and Fish Department, will prepare one or more Restoration Plans describing how these funds will be used for natural resource restoration activities. These future Restoration Plans will be made available for public review and comment.