Posts Tagged ‘nitrogen’
Earth & Environment - Jul 10, 2009 14:36 - 0 Comments
Across the globe, fertilizing crops in the extreme
The environmental consequences of using inorganic fertilizers have persisted in the United States, says Laurie Drinkwater, an agroecologist who studies the Mississippi River Basin.
Earth & Environment - Jun 22, 2009 14:53 - 1 Comment
Gulf ‘dead zone’ an ecological time bomb?
U. MICHIGAN (US)—Scientists predict this year’s seasonal drop in oxygen levels in Gulf of Mexico waters will be the largest on record, creating a so-called “dead zone” that threatens the health of a half-billion dollar fishery. (more…)
Earth & Environment - Jun 19, 2009 9:02 - 0 Comments
Ice cores show fossil fuels disrupt nitrogen cycle
Scientists extracted a 100-meter-long ice core in Greenland to measure how fossil fuel burning of industrial times has disrupted the global nitrogen cycle. At left is Meredith Hastings of Brown University, the lead author of the study, accompanied by Bella Bergeron from Ice Coring and Drilling Services. (Credit: Meredith Hastings/Julia Jarvis)
Earth & Environment - Mar 11, 2009 14:20 - 0 Comments
Rare element keeps rainforests lush
PRINCETON (US)—Researchers have made a surprising discovery about the health of tropical rainforests. This vital part of the Earth’s ecosystem appears to rely on a rare trace element to capture the nitrogen fertilizer needed to remain lush and thriving. (more…)
