AI Generated Image
America 250 Map Reveals Dramatic Changes Across US Since 1976
Newsweek • • science
Key Points:
- The U.S. Geological Survey (USGS) released a new satellite portrait of the United States using data from Landsat 8 and 9 to mark the nation's 250th anniversary, highlighting significant landscape changes over the past 50 years.
- The 2026 image shows a more vibrant and detailed view of the country compared to the 1976 mosaic, with notable differences such as increased greenery in the eastern U.S. and the shrinking of the Great Salt Lake in Utah due to drought, climate change, and water diversions.
- The Great Salt Lake's decline poses environmental and economic risks, including dust pollution and habitat loss, prompting calls for restoration efforts to prevent further damage.
- Landsat's continuous satellite record since 1972 has been crucial for monitoring environmental changes, supporting agriculture, water management, and disaster response across the U.S.
- NASA and USGS plan to continue this legacy with the launch of Landsat 10 in 2031, ensuring ongoing observation of Earth's land surface for scientific and policy use.
