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These glaciers are an important water resource for nearby communities, plants and animals. However, some have decreased in area, others have disappeared altogether, and some have become stagnant ice fields. Full story:

Did you know there are glaciers in Africa?. These are the Rwenzori Mountains, reaching 16,000 feet above sea level. Along with Kilimanjaro and Mount Kenya, they contain the bulk of East Africa’s tropical glaciers. They’re also in strong decline.

Satellites 🤝 Farmers. NASA’s OpenET system turns satellite data into valuable water insights, helping farmers across the U.S. track how much water is lost to air through evapotranspiration and how to better manage their resources. More:

Celebrate Earth Day with us:

At NASA, we study our home planet like no one else. From land, air and space, NASA satellites have been observing Earth for more than 60 years! #EarthDay

In March 2025, Arctic sea ice hit its lowest annual peak on record. At the other end of the globe, Antarctic sea ice cover was the second-lowest on record that month. That means that, overall, Earth’s sea ice reached a new record low in 2025. 🌊🧊

RT @NASAEarth: Sea ice update 🌊🧊. Global sea ice hit a record low this winter, @NASA and @NSIDC report. In the Arctic, winter sea ice was t….

RT @NASAEarth: Like many glaciers in the Alps, the Great Aletsch Glacier is retreating and thinning. These #Landsat images show change over….

RT @NASAEarth: Sea level update 🌊. In 2024, global sea level rose faster than expected mostly due to ocean water expanding as it warms, or….

RT @NASAScienceAA: From severe weather to air quality, tiny atmospheric particles can have a big impact. A #NASAScience-funded team is expl….

Although Mendenhall’s retreat began centuries ago, warming temperatures have accelerated its decline. Between 2005 and 2019, the wider Juneau Icefield (Mendenhall’s source) lost 63 of 1,050 glaciers and 10% of its ice. Satellites like Landsat help scientists track these changes.

These #Landsat images show how the size of the Mendenhall Glacier changed from 1986 to 2024, using infrared bands to differentiate ice, rocks & soil, and vegetation. The glacier has retreated about a mile, and in some places thinned by 2,000 feet.

Low seasonal snowpack and snow persistence affect downstream communities’ water security and affect fire activity in the region. More info:

Mountain snow is disappearing in the high-altitude region surrounding the Himalayas due to warmer and drier conditions. The shift is visible in these #Landsat 9 images from January 2022 and 2025.

In a report from Jan. 9, 2025, @noaa confirmed that La Niña conditions were present, though the Pacific Ocean may return to neutral conditions in spring 2025. “Although La Niña is here, it’s not a particularly strong one.” – Josh Willis, @NASAJPL oceanographer.

La Niña showed up in early December 2024, but it may not stick around long. The climate pattern tends to bring cooler, drier weather and is also associated with lower-than-average sea levels in the central and eastern Pacific Ocean.