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.
Interior Deputy Secretary Hayes to Deliver Policy Keynote at 2012 International Polar Year Conference
Hayes to discuss Interior's Science-Based Management Approach to Arctic
Last edited 4/27/2016
MONTREAL— Tomorrow, Deputy Secretary of the Interior David J. Hayes will deliver opening remarks at the 2012 International Polar Year Conference in Montreal, Canada. This year's conference, From Knowledge to Action, is expected to welcome over 2,500 participants from government, non-government, industry, education, and other various sectors to discuss the impacts of climate change and its effect on polar science and Arctic communities.
As chair of the Interagency Working Group on Coordination of Domestic Energy Development and Permitting in Alaska, Deputy Secretary Hayes will discuss efforts by the Department and the Obama administration to bring the best available science to resource management decisions in the Arctic's sensitive environment.
David J. Hayes, Deputy Secretary of the Interior
International Polar Year 2012 Conference: From Knowledge to Action