Climate283
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Is Ocean Water Helping to Melt Glaciers?
After crossing the Ross Sea, we’ve reached our first study area: the “Little America Trough.” The oceanographers on board want to find out if warmer water from the deep ocean is rising onto the continental shelf and reaching the ice, making it melt faster. They measure temperature and salinity as well as the water currents.…
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Urbanization, Export Crops Drive Deforestation
In Reversal, Land Is Cleared for Global Trade and Big Cities, Says Study
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A Quiet Crackling Below the Ice
As a child, I believed that I could hear the ocean in a seashell. Now when I think about the sounds of the sea, I imagine the roar of waves crashing on the beach. But from the vantage point of a ship with noisy engines, the water seems silent. In 1490, Leonardo da Vinci observed,…
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India boosts climate data contribution to IPCC
“A scientific network set up recently by India’s environment ministry will contribute formally to the Intergovernmental Panel on Climate Change (IPCC), the country’s prime minister has announced.
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Ready to Sail
Today we arrived at McMurdo, an American research station that hosts Antarctica’s largest community—about 1,000 people during austral summer. To get here, a US Air Force cargo plane picked us up in Christchurch, New Zealand, and landed us on the ice nearby. Today is a balmy summer day of 30°F, not much colder than the…
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Melting Glaciers–Tracking Their Path
I am a geophysicist at Columbia’s Lamont-Doherty Earth Observatory, and I study how different processes shape the bottom of oceans and rivers. One focus of my research is the continental shelves off Antarctica, especially in the Bellingshausen and Amundsen Sea, and the role of ice sheets in their formation. I made my first trip to…
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What’s Making West Antarctica Melt?
The view from the Palmer is so blindingly white today that the eye cannot tell where the ice ends and the clouds begin. In this unusually icy Antarctic summer, it seems strange to contemplate melting ice. But glaciers, here and in Greenland, are melting faster than they are growing. We know that ice sheets have…
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Climate News Roundup – Week of 2/1
Obama Seeks to Boost Nuclear Power in New Budget, Yahoo News A White House Official states Friday that President Obama plans to triple government loan guarantees for nuclear power development to over $54 billion. This increase follows President Obama’s State of the Union address on Wednesday night, which urged legislators to reach a bi-partisan consensus…
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Food Miles, Fair Miles
It’s not often that when we purchase food from a bodega or grocery store that we consider where it came from. Is my apple from New York, Washington, or China? Were my tomatoes grown in Florida, California, or Mexico? Whose hands planted and picked them? Why did this planter choose this variety? Wherever our food…
You Asked invites you to share your most pressing questions about climate, science, and sustainability. Lamont-Doherty Earth Observatory and Columbia Climate School experts will respond with clear, evidence-based answers. Pose your questions and story ideas!