Earth Sciences10
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Land Subsidence in the Netherlands
At a symposium on land subsidence, I learned about how the Dutch transformed their country so that about a quarter of it is below sea level and how they cope with it.
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New Project Aims to Advance Open and Inclusive Science
A new CIESIN project funded by NASA’s Open Source Science Initiative will produce online learning modules to develop open science literacy for researchers at diverse career stages and from varied backgrounds.
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Ivan Tolstoy, Who Elucidated Travels of Sound Through Oceans and Air, and Helped Map Seabeds, Dies at 99
From beginnings as an exile from the Russian Revolution, a life spent studying geology and long-distance acoustics at sea and in the atmosphere.
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1,000-Plus Years of Tree Rings Confirm Historic Extremity of 2021 Western North America Heat Wave
Scientists quickly pronounced the summer 2021 heat wave that hit western North America to be unprecedented, but they had no long-term physical proof. Now they do.
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Exploring the Sundarbans and Back to Dhaka
Our group of 24 Americans and Bangladeshis continued to explore the Sundarbans mangrove forest, rice farming in embanked low-lying islands, and heritage sites of Bangladesh.
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Across the Ganges to Southwest Bangladesh and the Sundarbans
Our group of 23 American and Bangladeshi students and professors traveled from the Jamuna River to the Ganges and Gorai Rivers, and then down to an island on the edge of the Sundarbans, the world’s largest mangrove forest.
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Cutting Confederate Ties, the U.S. Navy Names Ships for a Pioneering Female Oceanographer and a Daring Enslaved Pilot
Marie Tharp was a marine scientist in a man’s world. Robert Smalls was a skilled sailor, but held as a slave. Both are now being honored by the U.S. Navy.
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Taking My Class to Bangladesh
My undergraduate Sustainable Development course is in Bangladesh for a Spring Break trip to see what they have been learning about. We will be touring the country by bus and boat to learn about the environment and people of Bangladesh.
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Towering Wildfire Clouds Are Affecting the Stratosphere, and the Climate
Aircraft collecting data from clouds of smoke have revealed surprising effects of wildfires on the ground.

AGU25, the premier Earth and space science conference, takes place December 15-19, 2025 in New Orleans, Louisiana. This year’s theme—Where Science Connects Us—puts in focus how science depends on connection, from the lab to the field to the ballot box. Once again, Lamont-Doherty Earth Observatory and Columbia Climate School scientists, experts, students, and educators are playing an active role, sharing our research and helping shape the future of our planet. #AGU25 Learn More
