A new study maps for the first time the evolutionary history of the world’s terrestrial vertebrates: amphibians, birds, mammals and reptiles. It explores how areas with large concentrations of evolutionarily …read more Source:: Science
Tag: concentrations
Southern California coast emerges as a toxic algae hot spot
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•The Southern California coast harbors some of the world’s highest concentrations of an algal toxin perilous to wildlife and people. The most thoroughgoing assessment of the problem shows it’s getting …read more Source:: Science
Organics on Ceres may be more abundant than originally thought
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•A new analysis of data from NASA’s Dawn mission suggests that organic matter may exist in surprisingly high concentrations on the dwarf planet’s surface. …read more Source:: Science
Greenhouse gas concentrations surge to new record
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•Concentrations of carbon dioxide in the atmosphere surged at a record-breaking speed in 2016 to the highest level in 800,000 years, according to a new report. The abrupt changes in …read more Source:: Science