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Nitrogen in the Earth System
Nitrogen is essential to all living systems, which makes the nitrogen cycle one of Earth's most important nutrient cycles.
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Hurricanes, Typhoons, Cyclones
Background information on hurricanes, typhoons and cyclones, including frequently asked questions.
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Snowmageddon and the not-so-wild West
Residents of the mid-Atlantic can be forgiven if they’re craving a bit of calm. The weekend of 5–6 February brought what’s been variously dubbed Snowpocalypse II, Snowmageddon, Snowtastrophe, and the Superbowl Superstorm.
- Weather