@NASAClimate

🚚 We’ve moved! This account is no longer active. For the latest climate news and resources, follow @NASAEarth or visit https://xitter.cf/t.co/EYapdO7MId

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🚚 We’ve moved!  This account is no longer active. For the latest climate news and resources, follow @NASAEarth or visit science.nasa.gov/earth
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🕦 Just one week left until this account is archived. Please follow @NASAEarth for the latest climate news, important announcements, and resources.
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📣Update: We’re moving! For continued access to our latest climate news, important announcements, and resources, please follow @NASAEarth. This account will be archived over the coming weeks.
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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.
Landsat 9 image of the Rwenzori Mountains. Dark-green vegetation lies on the mountain flanks and transitions to more barren, brown land at higher elevations. Small patches of white snow and ice are visible on the tallest peaks. A network of thin brown rivers is visible to the left and right of the mountains.

ALT Landsat 9 image of the Rwenzori Mountains. Dark-green vegetation lies on the mountain flanks and transitions to more barren, brown land at higher elevations. Small patches of white snow and ice are visible on the tallest peaks. A network of thin brown rivers is visible to the left and right of the mountains.

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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: go.nasa.gov/3Sgiugj
A detailed view of the Rwenzori Mountains, centered in the scene, shows the range's three highest mountains: Mount Stanley, Mount Speke, and Mount Baker. The peaks are topped with white, much of which is snow.

ALT A detailed view of the Rwenzori Mountains, centered in the scene, shows the range's three highest mountains: Mount Stanley, Mount Speke, and Mount Baker. The peaks are topped with white, much of which is snow.

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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: go.nasa.gov/4j4wjt2
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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
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Celebrate Earth Day with us: go.nasa.gov/3RsMeGk
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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. 🌊🧊 go.nasa.gov/4j0lgCe
Graph showing sea ice extent in millions of kilometers in 2025. Purple lines show Antarctic sea ice. It dips and hits an annual low around February and March, then rises to hit a peak around September and October. A green line shows Arctic sea ice, which peaks around March and dips around September to October. At the top is a group of blue lines showing global total sea ice, which dips around March and has two peaks around June and November. Lighter color lines show more recent years, which are much lower than the older, darker years for each of the lines.

ALT Graph showing sea ice extent in millions of kilometers in 2025. Purple lines show Antarctic sea ice. It dips and hits an annual low around February and March, then rises to hit a peak around September and October. A green line shows Arctic sea ice, which peaks around March and dips around September to October. At the top is a group of blue lines showing global total sea ice, which dips around March and has two peaks around June and November. Lighter color lines show more recent years, which are much lower than the older, darker years for each of the lines.

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ARCHIVED - NASA Climate retweeted
NASA Earth
@NASAEarth27 Mar 2025
Sea ice update 🌊🧊 Global sea ice hit a record low this winter, @NASA and @NSIDC report. In the Arctic, winter sea ice was the lowest it’s ever been at its annual peak this year. The Antarctic sea ice minimum was also the second-lowest on record. More: go.nasa.gov/4j4KpuV
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ARCHIVED - NASA Climate retweeted
NASA Earth
@NASAEarth19 Mar 2025
Like many glaciers in the Alps, the Great Aletsch Glacier is retreating and thinning. These #Landsat images show change over the past 40 years. The shortening and narrowing of a glacier’s surface area can indicate a net loss of ice mass. go.nasa.gov/4inoZJB
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ARCHIVED - NASA Climate retweeted
NASA Earth
@NASAEarth13 Mar 2025
Sea level update 🌊 In 2024, global sea level rose faster than expected mostly due to ocean water expanding as it warms, or thermal expansion. According to a NASA-led study, 2024’s rise was 0.23 in (0.59 cm) per year, compared to the expected rate of 0.17 in (0.43 cm) per year.
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ARCHIVED - NASA Climate retweeted
ARCHIVED - Dr. Nicky Fox@NASAScienceAA4 Mar 2025
From severe weather to air quality, tiny atmospheric particles can have a big impact. A #NASAScience-funded team is exploring how metasurface optical elements could enable lighter & smaller space-based instruments to characterize these particles and improve our climate models and weather predictions. science.nasa.gov/science-res…
A photograph of two fully fabricated flat polarimeter samples. Metasurfaces could become the foundation for future, ultra-light instruments, including space-based polarimeters. Credit: Capasso Group

ALT A photograph of two fully fabricated flat polarimeter samples. Metasurfaces could become the foundation for future, ultra-light instruments, including space-based polarimeters. Credit: Capasso Group

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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. go.nasa.gov/3QGqJS9
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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 over time.
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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.
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Low seasonal snowpack and snow persistence affect downstream communities’ water security and affect fire activity in the region. More info: go.nasa.gov/4i3TRyf

Earth Observatory - NASA Science

NASA's Earth Observatory brings you the Earth, every day: images, stories, and discoveries about the environment, Earth systems, and climate.

science.nasa.gov
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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. go.nasa.gov/4aSnDDA
Globe centered on the Pacific Ocean. The west coast of North America is barely visible on the top right and Australia on the bottom left. The globe shows sea surface height anomaly in centimeters. Blue indicates a negative anomaly and yellow, orange and red indicate a positive anomaly. There is a dark blue band along the equator and patches of red and orange above it and at the very bottom of the globe.

ALT Globe centered on the Pacific Ocean. The west coast of North America is barely visible on the top right and Australia on the bottom left. The globe shows sea surface height anomaly in centimeters. Blue indicates a negative anomaly and yellow, orange and red indicate a positive anomaly. There is a dark blue band along the equator and patches of red and orange above it and at the very bottom of the globe.

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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
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Earth’s water cycle is shifting in unprecedented ways due to human changes to agriculture systems and human-caused climate change. The shifts could affect the accuracy of climate models, water management practices, and more.
A shallow pool of water over a cracked valley floor underneath a cloudy sky. Photo credit: NPS / Kurt Moses

ALT A shallow pool of water over a cracked valley floor underneath a cloudy sky. Photo credit: NPS / Kurt Moses

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They found decreasing groundwater reservoirs, shifts in the timing of seasons, and more frequent extreme events by analyzing @NASA satellite data from 2003-2020. go.nasa.gov/3CEc06H

NASA Scientists Find New Human-Caused Shifts in Global Water Cycle - NASA

In a recently published paper, NASA scientists use nearly 20 years of observations to show that the global water cycle is shifting in unprecedented ways. The

nasa.gov
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