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.
Natural Resource Damage Assessment and Restoration (NRDA Restoration) is the process used to determine whether public natural resources have been injured, destroyed, or lost as a result of a release of hazardous substances or oil and to identify actions and funds needed to restore such resources. NRDAR is authorized by the Comprehensive Environmental Response, Compensation, and Liability Act of 1980 (CERCLA), Oil Pollution Act of 1990 (OPA) and the Clean Water Act (CWA). These statutes designate Federal, State and Tribal government officials to act as ‘trustees” on behalf of the public to recover damages from responsible parties to restore injured, destroyed, or lost natural resources. Damages can include money for trustee implementation of restoration actions and/or actual work undertaken by responsible parties with trustee oversight.
Every action the NRDA Restoration Program carries out is done with the goal of restoration in mind. The eventual restoration of injured natural resources drives the damage assessment process and provides the basis for the damage claim. Over ninety percent of all funds received from natural resource damage case settlements and judicial agreements are designated as restoration funds. After the development of a publicly-reviewed restoration plan, the Program and co-trustees implement restoration projects, often in partnership with non-governmental groups, local governments, or even the responsible party. Through these actions, injured natural resources and the services they provide are restored at the expense of the responsible party, not the taxpaying public.