Start Date: End Date: Published Date Data Date
On This Day in 2013: Elephant Butte Reservoir
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Published July 8, 2023
The volume of water in New Mexico’s largest reservoir dropped to historic lows due to drought and persistent demand.
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Lake Powell Reaches New Low
Published September 23, 2021
Water levels at Glen Canyon Dam have fallen to their lowest level since 1969 and are still dropping.
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Lake Mead Drops to a Record Low
Published August 27, 2021
The reservoir stands at its lowest level since the 1930s.
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A Fast-Changing Delta in China
Published March 24, 2021
Changes in sediment load, vegetation, and the river’s course have brought stark changes to this dynamic river delta.
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2020 Tied for Warmest Year on Record
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Published January 14, 2021
Earth’s average temperature has risen more than 1.2°C (2°F) since the late 19th century.
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Assateague on the Move
Published October 9, 2019
Assateague, Chincoteague, and Wallops provide a rare example of overlapping barrier islands. All of them are constantly in motion.
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A Pulse of Water for Lake Powell
Published October 1, 2019
Heavy winter and spring snowfall provided much-needed meltwater, but the effects of long-term drought mean the lake is nowhere near its highs from the 1980s and 90s.
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Wide Wildwood Beaches
Published August 5, 2019
For many people, there is great joy and good summer business to be found on the widest beach in New Jersey and one of the widest on any coast.
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Scientists Discover the Biggest Seaweed Bloom in the World
Published July 8, 2019
The record-breaking belt of brown algae stretches from West Africa to the Gulf of Mexico, and it is likely here to stay.
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Major Greenland Glacier Is Growing
Published June 18, 2019
Jakobshavn Glacier has grown for the third year in a row, and scientists attribute the change to cool ocean waters.
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Ozone Hole is Big, But Tempered by CFC Reductions
Published November 14, 2018
The hole in the ozone layer over Antarctica was slightly above average size in 2018, but smaller than expected for the weather conditions.
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2017 Was the Second Hottest Year on Record
Published January 18, 2018
Globally averaged temperatures were 0.90 degrees Celsius (1.62 degrees Fahrenheit) warmer than the long-term mean.
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