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.
Secretary Kempthorne, Mexican Ambassador Sarukhan Sign Declaration Commending On-Going Partnership in the Management of the Colorado River
Last edited 4/25/2016
WASHINGTON, D.C. -- Secretary of the Interior Dirk Kempthorne and Mexican Ambassador to the United States Arturo Sarukhan today signed a declaration praising joint efforts to identify additional cooperative measures to improve management of the Colorado River to meet the environmental, agricultural and urban needs of both countries during a period of historic drought.
The joint declaration, signed during a ceremony at the Mexican Embassy, highlights cooperation between the two countries in the past two years under the auspices of the International Boundary and Water Commission to develop innovative approaches to better management of the Colorado's water.
“This joint declaration celebrates and solidifies our long-standing partnership with Mexico to manage the waters of the Colorado to benefit all who depend on this magnificent river system, especially during the current drought,” Kempthorne said. “It is an expression of both the good will and good faith our two great countries bestow upon each other as neighbors who share the vital waters of the Colorado River.”
The United States and Mexico agreed to the allotment of the waters of the Colorado River in the 1944 Treaty Relating to the Utilization of Waters of Colorado and Tijuana Rivers and of the Rio Grande and concluded subsequent agreements which are administered by the International Boundary and Water Commission.
In August, 2007, the two countries issued the U.S.-Mexico Joint Statement on Colorado River Cooperative Actions. The commission established “a framework for the discussion, joint study, investigation and evaluation of cooperative, innovative and holistic measures that may benefit Colorado River water users in the United States and Mexico.”
Today's declaration reemphasizes the continued support of both countries to “efforts to identify innovative opportunities for water conservation, storage, supply augmentation, and environmental protection.”
Here is the text of the declaration:
JOINT DECLARATION ON COLORADO RIVER ISSUES
Whereas the United States and Mexico have sought to address areas of common interest through negotiations based on the principles of mutual respect and bilateral collaboration, recognizing that this commitment to joint discussion is likely to identify responsible solutions that benefit the citizens of both nations;
Whereas the Colorado River is a vital resource to vast areas of the southwestern United States in the States of Arizona, California, Colorado, Nevada, New Mexico, Utah, and Wyoming; and to northwestern Mexico in the States of Baja California and Sonora, which depend upon the waters of the Colorado River to support agricultural economies, growing municipal populations' potable water needs, as well as vital natural resources;
Whereas the United States and Mexico agreed to the allotment of the waters of the Colorado River in the 1944 Treaty Relating to the Utilization of Waters of Colorado and Tijuana Rivers and of the Rio Grande and concluded subsequent agreements which are administered by the International Boundary and Water Commission (IBWC);
Whereas recent periods of historic drought in the Colorado River Basin and growing recognition of the potential adverse impacts of climate change have stimulated efforts to identify cooperative and innovative approaches to ensure that the Colorado River allotment of each nation will continue to meet the needs of both nations;
Whereas, pursuant to the August 13, 2007 U.S.-Mexico Joint Statement on Colorado River Cooperative Actions, the IBWC established a framework for the discussion, joint study, investigation and evaluation of cooperative, innovative and holistic measures that may benefit Colorado River water users in the United States and Mexico;
Whereas representatives from governmental and non-governmental organizations in the United States and Mexico have devoted significant effort, particularly over the past two years through the IBWC, to this initiative in order to identify, discuss, and prioritize potential actions for implementation through cooperative efforts to provide additional security and certainty in the water supply of the Colorado River System;
Whereas both the United States and Mexico were deeply saddened by the tragic loss, on September 15, 2008, of U.S. Commissioner Carlos Marin and Mexico Commissioner J. Arturo Herrera Solis of the IBWC who were instrumental in leading these cooperative efforts and were committed to ensuring the sustainable management of the waters of the Colorado.
Secretary Dirk Kempthorne and Ambassador Arturo Sarukhan hereby applaud the efforts of the IBWC and its work to help identify cooperative and innovative measures that both countries could implement consistent with the provisions of the 1944 Treaty to help ensure that the Colorado River is able to continue to meet the needs of both nations; and,
Further, both governments support these efforts to identify innovative opportunities for water conservation, storage, supply augmentation, and environmental protection, which are viewed as complementary to the mission of the Department of the Interior and the respective Mexican ministries, consistent with the provisions of the 1944 Treaty.