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## By Year

National News Release        April 4, 2024        In monarch butterfly decline mystery, scientists rule out habitat loss in migration zone

National News Release        May 23, 2016        New Research Confirms Continued, Unabated and Large-Scale Amphibian Declines: Local Action Key to Reversing Losses

National News Release        October 18, 2016        Increase in Domestic Energy Production Contributing to Sage-grouse Population Declines

National News Release        March 30, 2021        New Research Highlights Decline of Greater Sage-Grouse in the American West, Provides Roadmap to Aid Conservation

National News Release        September 8, 2014        Research Shows Historic Decline in Pacific Walrus Population

National News Release        November 17, 2014        Southern Beaufort Sea Polar Bear Population Declined in the 2000s

National News Release        January 13, 2016        Manmade Mercury Emissions Decline 30 Percent from 1990-2010

National News Release        December 10, 2015        Continued Decline of the Northern Spotted Owl Associated with the Invasive Barred Owl, Habitat Loss, and Climate Variation

map        January 1, 1993        The magnetic field of the Earth, 1990: Declination chart

map        January 1, 1988        The magnetic field of the earth— 1985: Declination chart

map        January 1, 1983        The magnetic field of the earth, 1980 magnetic declination

map        January 1, 1981        Magnetic declination in the United States; epoch 1980

map        January 1, 1975        Magnetic declination in the United States; epoch 1975.0

map        January 1, 1992        The magnetic field in the United States, 1990: Declination chart

National News Release        September 28, 2015        Declines and Slow Recovery in Little Brown Bat Populations Predicted

map        January 1, 1988        The magnetic field in the United States, 1985: Declination chart

National News Release        January 23, 2015        Culprit Identified in Decline of Endangered Missouri River Pallid Sturgeon

National News Release        June 16, 2014        Austin Coal-Tar Sealant Ban Leads to Decline in PAHs

National News Release        March 20, 2015        New Study Sheds Light on Mammal Declines in Everglades National Park

National News Release        June 19, 2018        Water Use Across the United States Declines to Levels Not Seen Since 1970

National News Release        March 17, 2021        New Report Highlights Declining Sagebrush Ecosystem, Provides Foundation for Next Generation of Conservation and Management

National News Release        September 7, 2016        Declining Bird Community on Kauai Island Reveals Threat of Changing Environmental Conditions

National News Release        January 20, 2016        Invasive Amphibian Fungus Could Threaten US Salamander Populations

National News Release        April 30, 2019        Coral Reef Barriers Provide Flood Protection for More Than 18,000 People and $1.8 Billion Worth of Coastal Infrastructure and Economic Activity Annually

map        August 3, 2023        Estimating streambed hydraulic conductivity for selected streams in the Mississippi Alluvial Plain using continuous resistivity profiling methods—Delta region

map        June 15, 2023        Potentiometric surface map of the Southern High Plains aquifer in the Cannon Air Force Base area, Curry County, New Mexico, 2020

National News Release        January 23, 2023        Climate change and pesticides imperil a once common pollinator

National News Release        August 2, 2021        When Unchecked, Free-Roaming Horse Populations Threaten Greater Sage-Grouse

National News Release        February 24, 2014        Barred Owls Ousting Spotted Owls in the Pacific Northwest

National News Release        January 30, 2015        Value of U.S. Mineral Production Increases Despite Lower Metal Prices

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