Reactive nitrogen emissions contribute to greenhouse gases, as well as air and water pollution.
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NASA Study Examines Houston-area Air Quality Issues
NASA scientists are in Houston this month for an intensive air quality study exploring the effects of emissions and weather on air pollution, as well as the relationship between air quality and socioeconomic factors.
Loss of Picky-Eating Fish Threatens Coral Reef Food Webs
Coral reefs all over the world, already threatened by rising temperatures brought about by climate change, also face serious challenges from the possibility of fish species extinctions.
As Italy’s Glaciers Recede, a Stunning World of Ice Is Being Lost
Like mountain glaciers worldwide, the glaciers of the Italian Alps are steadily melting away.
Sudbury Impact Structure
Few craters are as large, or as old, as this impact structure in southeastern Ontario, Canada.
Coral Reef Biodiversity Predicted to Shift as Climate Changes
Coral reefs are among the most biologically diverse, complex and productive ecosystems on the planet. Most of coral reef biodiversity consists of tiny organisms living deep within the three-dimensional reef matrix.