Earth Science

Sustainable Recovery of Nutrients from Urine

New York, NY — Ammonia is a key component of fertilizer and vital in supporting plant growth and ultimately providing food for populations around the world. It is also a major pollutant that, after...

North Pole Soon to be Ice Free in Summer

Hamburg, Germany — The Arctic Ocean in summer will very likely be ice free before 2050, at least temporally. The efficacy of climate-protection measures will determine how often and for how long. These...

Wildfire Cycles and Climate Change

Beijing, China — Wildfire, a natural phenomenon, existed on the Earth over 400 Ma. However, the mechanisms underlying wildfire-climate interactions are not clear. Wildfire forcing has long been underestimated...

Reconstructing the Diet of Fossil Vertebrates

Leipzig, Germany — Information on what our ancestors ate is based mainly on carbon and nitrogen isotope analyses of the structural protein collagen in bones and dentin. Nitrogen isotope analysis, in...

New Species of Allosaurus Discovered in Utah

Salt Lake City, UT — A remarkable new species of meat-eating dinosaur has been unveiled at the Natural History Museum of Utah. Paleontologists unearthed the first specimen in early 1990s in Dinosaur...

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