Earth's oceans are full of plastic. Though the state-sized garbage patches formed by ocean currents are the most visible, just an estimated 1% of ocean plastic lurks on the surface. The other 99% hides elsewhere in the ocean and may be found in the deep sea, mixed in with seafloor sediment. These particles are often in the form of microplastics: fragments of plastic goods degraded to less than 1 millimeter in length.

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There are so many great events to participate in at EGU25 this year, in both on-site and virtual formats, that it can be very easy to feel overwhelmed. Whilst we encourage you to make good use of your Personal Programme to help organise your activities, we also reached out to several of EGU's Committees that are responsible for specific other aspects of EGU's activities, including the Outreach Committee and the Education Committee to ask them for their recommendations as to what not to miss during EGU25!

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A national recreation area and state park protect an archipelago made of glacial debris in eastern Massachusetts.   Read More......

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Via Laura Paskus: The Middle Rio Grande began drying on April 15, and on Monday more than 18 miles were dry south of Albuquerque. We should expect poor conditions to expand in the coming weeks and months -- and plan accordingly. Historically, the Ri...

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Every month on Earth Matters, we offer a puzzling satellite image. The April 2025 puzzler is shown above. Your challenge is to use the comments section to tell us where it is, what we are looking at, and why it is interesting. How to a...

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Columbia Climate scientists launch the first long-term dataset to track and predict the occurrence of climate change-fueled extreme events....

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 As a writer, Roger Rosenblatt has masterfully fulfilled multiple roles, that of reporter, novelist, memoirist, and, I would add, poet.  His books and essays are remarkable for their grace, insight, and wit.  As he's grown older, he has been reporting back from the land of the aged, mostly recently in an essay in The New York Times titled How to be a Happy 85-Year-Old (Like Me) (April 13, 2025).  The essay's ten observations, rules, pieces of advice - whatever - may or may not make you happy at 85 (or any age), but they certainly better the odds.

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After 5 years of organizing TierraFest, an annual event that celebrates the Earth sciences in Mexico, one of the things Raiza Pilatowsky Gruner has learned is that when it comes to communicating knowledge about our environment, "we scientists are not the people with the greatest authority. We all live on this planet."

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On 21 April, the Environmental Protection Agency notified hundreds of employees working on diversity, equity, and inclusion and environmental justice issues that they would be fired or reassigned to other positions.

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Take a virtual tour of some remarkable renewable energy projects from around the globe, each showcasing innovative technology, ambitious scale, and a commitment to a cleaner, more sustainable future....

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Work to avoid being somebody who discourages others from sharing their thoughts.

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Texas' Third Court of Appeals will hear arguments tomorrow, April 23, 2025, in a case that cuts to the core of how state and local governments coexist. In Texas v. City of Houston, City of San Antonio, and City of El Paso, a group of Texas cities is challenging one of the most sweeping preemption laws adopted anywhere in the country. That law, the Texas Regulatory Consistency Act (TRCA), gives the state nearly total control over a range of issues, including how cities can protect workers from extreme heat and other impacts of climate change. For local policymakers in Texas, the case will shape the options available to enact innovative measures to adapt to a changing climate.

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Every year at the General Assembly hundreds of students present their research with a lot of time and effort going into preparing these presentations. With the aim to further improve the overall quality of poster presentations and more importantly, to encourage Early Career Scientists to present their work in the form of a poster, the OSP Awards (as they were formerly known), were born. Since the 2016 General Assembly, PICO presentations have been included in the awards, which have been renamed to Outstanding Student and PhD-candidate Presentation (OSPP) Awards.

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Artificial neural networks (ANNs) have been used for quite some time to identify, for example, flowers in easy-to-use apps on smartphones. They have been, however, the focus of great attention since the introduction of generative artificial intellige...

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The peaks in Guadalupe Mountains National Park--some of the highest in Texas--are made of a well-preserved fossil reef formed more than 250 million years ago. Read More......

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AGU mourns the passing of Pope Francis. 

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"Shelter" by Colin.Come my sweet and let us lie inSome idyllic wooded glade And let us stay til merry-made Amid the Bracken.For April, the South Dakota fern-a-month series features the world's most widespread fern--Pteridium aquilinum, Bracken (aka...

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The National Science Foundation has cancelled hundreds of grants to researchers working on projects related to diversity, equity, and inclusion, as well as misinformation and disinformation.

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It's easy to take for granted the accounting innovations in the Colorado River governance regime's 2007 guidelines, which have governed river management and the upstream-downstream relationships between the upper and lower basins. "Intentionally Created Surplus" (ICS) is now part of the lexicon, and the idea behind it shows enough promise that it's at the heart of the current negotiations over the post-'07 guidelines management of the river.

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In 2004, the Indianapolis 500 turned into the Indianapolis 450. Organizers shortened the famous automobile race by 20 laps (50 miles) after a tornado touched down near the Indianapolis Motor Speedway, where more than 200,000 spectators were in attendance. Large outdoor gatherings such as this expose event-goers to the elements, and in some parts of the United States, severe weather can make that pairing deadly.

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This year's Photo Competition judging panel did a fantastic job of narrowing down the outstanding photo submissions to the EGU's Photo Competition to just 10 finalists!  The finalist photos are listed below and on the Imaggeo website where you can vote for them from Sunday 27 April until Thursday, 1 May 2025 - voting closes at 18:00 CEST.

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Our ELI today is 'Human magnets! - modelling ancient and modern magnetic fields, using your pupils'.

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The Channel Islands off the coast of southern California support diverse ecosystems, with some plants and animals found nowhere else on the planet. Read More......

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Last Monday there was a power outage on campus and classes were cancelled, despite this news our afternoon lab period fieldtrip went on as planned. The trip consisted of a field trip led by Nigel Brush (retired from Ashland U. and Wooster). It was a great trip on a beautiful day and we greatly appreciate Dr. Brush's time and willingness to share his expertise of the history of our region. 

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Quelccaya Ice Cap (QIC) is located in the tropical Andes of southeast Peru. Along with Coropuna Ice Cap it is one of two large ice caps in the area. Lamantia et al (2024) observed a 37% decline overall QIC area from 1985-2022, and a 57% decline in snow covered area. They observe snow cover is particularly limited during El Nino events. Here we examine the particularly high snowline and resulting minimum snow cover on QIC in 2024.

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