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 Open 30-Day Public Comment Period on Draft Assessment Plan for Natural Resource Injuries at Sauget Superfund Sites, St. Clair County, Illinois
Last edited 2/14/2017
On June 18, 2013, the federal and State natural resource trustees opened a 30-day public comment period on the draft “Assessment Plan for the Natural Resource Damage Assessment of the Sauget Industrial Corridor Site, St. Clair County, Illinois.” This draft Assessment Plan describes the approach and activities the trustees propose undertaking as part of the natural resource damage assessment of hazardous substances releases at the Sauget Industrial Corridor sites, St. Clair County in southwestern Illinois.
The natural resource trustees in this case include:
State of Illinois, represented by Illinois Department of Natural Resources and Illinois Environmental Protection Agency;
State of Missouri, represented by Missouri Department of Natural Resources; and,
U.S. Department of the Interior, represented by U.S. Fish and Wildlife Service.
The Sauget Industrial Corridor encompasses an area of Mississippi River floodplain around the Villages of Sauget, Cahokia and East St. Louis in St. Clair County, Illinois. A variety of sites within the Corridor include industrial facilities, landfills, waste disposal areas, sludge lagoons and contaminated waterways.
Hazardous substances -- such as PCBs, dioxins, furans, cadmium, copper, lead, mercury and zinc -- have been released from these sites to groundwater, nearby wetlands and endangered species habitat. U.S. Environmental Protection Agency has proposed listing these sites on the National Priorities List as Sauget Area 1 and Sauget Area 2.
The trustees prepared a Preassessment Screen and Determination in 2009 that concluded a natural resource damage assessment was warranted at Sauget Industrial Corridor. As a next step, the trustees prepared this draft Assessment Plan which is intended to:
document the trustees’ basis for conducting a natural resource damage assessment;
organize the approach for quantifying natural resource injuries and calculating damages;
ensure that the NRDA will be completed at a reasonable cost relative to the magnitude of damages sought; and,
communicate assessment methodologies to the public to facilitate participation in the assessment process.
Written comments on the draft Assessment Plan must be received by the U.S. Fish and Wildlife Service or Illinois Department of Natural Resources by Thursday, July 18, 2013.