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.
Salazar Cites Interior Department Efforts To Develop Renewable Energy, Respond to Climate Change
Last edited 4/25/2016
WASHINGTON, D.C.--The Department of the Interior is accelerating the development of renewable energy on its vast public lands and offshore areas “to help power President Obama's vision for a new energy economy,” Secretary of the Interior Ken Salazar told the Senate Environment and Public Works Committee today.
The Secretary warned, however, that the nation “cannot fully unleash renewable energy's economic engine unless this committee, and the Senate, put an upper limit on the emissions of heat-trapping gases that are damaging our environment.”
American business is responding to the opportunity to develop renewable resources on areas under Interior's jurisdiction, Salazar testified. “Companies are investing in wind farms off the Atlantic Ocean, solar facilities in the Southwest, and geothermal energy projects throughout the West.
“These new energy sources produce no greenhouse gases and, once installed, they harness free, renewable energy that nature itself provides,” the Secretary noted.
Secretary Salazar recently awarded five exploratory leases for renewable wind energy production on the Outer Continental Shelf offshore New Jersey and Delaware. He also opened new Renewable Energy Coordinating Offices in Nevada, Arizona, California, and Wyoming to expedite processing the large number of applications for renewable energy projects on U.S. lands.
Currently, there are 158 active solar applications Interior offices are processing which have a projected capacity to generate as much as 97,000 megawatts of electricity.
That's enough to power 29 million homes, the equivalent of 29 percent of the nation's household electrical consumption
The Interior Department, as the nation's largest land manager, is documenting the negative impacts that climate change is having on land, water and wildlife resources, the Secretary told the committee. The department's 6,000 scientists and 14,000 land managers are developing approaches to respond to these impacts. Water managers are factoring new precipitation patterns into their planning decisions.
USGS science and the experience of Interior land managers in investigating carbon sequestration projects in tandem with our broader ecosystem responsibilities, also should be very useful to the committee, the Secretary said.
“The Department of the Interior stands ready with our shoulder to the wheel to contribute to this effort,” Secretary Salazar concluded.