The ocean’s depths cooled off about 1.5 million years ago, and scientists think watery tunnels from the south may be to blame.
Larissa G. Capella
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New Satellite Data Reveal a Shift in Earth’s Once-Balanced Energy System
The Northern Hemisphere is absorbing more sunlight than the Southern Hemisphere, and clouds can no longer keep the balance.
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Salt May Be Key to Martian Mudflows
Mars probably has mud volcanoes, and salt might be the ingredient that keeps the flow going.
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Extreme Heat and Rain Turned These Arctic Lakes Brown
Scientists are stunned by the changes in multiple Arctic lakes, all transforming in the same way.
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Tourism and Distant Fires Affect Antarctica’s Black Carbon Levels
Tourism and biomass burning in the Southern Hemisphere are boosting black carbon levels and accelerating ice melt in Antarctica.
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New Map Reveals the Extent of Vegetation in Antarctica
More than 40 square kilometers of vegetation cover Antarctica, including in previously unknown areas. A new map offers fresh insights for conservation amid climate change.