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Taking Stock of Carbon Dioxide Emissions
A pilot project has used satellite measurements to estimate emissions and removals of carbon dioxide in individual nations.
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Nitrogen Dioxide in the Neighborhood
A team of scientists mapped nitrogen dioxide in California's air at the neighborhood scale and found hotspots of the air pollutant near high-rise buildings and food processing facilities.
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Mayotte's Lagoon
Coral reefs surround the volcanic islands of Mayotte, the eastern-most islands in the Comoros archipelago.
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New York and New Jersey
Shadows from skyscrapers and other city buildings give the photograph a 3D look.
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Landslides in São Paulo, Brazil
After torrential rains, satellite images revealed widespread landslides in the Brazilian state's coastal municipality of São Sebastião.
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A Dazzling Aurora Borealis
Astronauts and sky watchers oohed and aahed as the night sky lit up with pulsating displays of reds, greens, and purples.
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Saving a Forest of One
Overgrazing by deer poses a threat to a giant quaking aspen tree colony in Utahâone of the largest organisms in the world.
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