When earth was a snowball.

• Autores: Carrie Arnold
• Localización: Scientific American, ISSN 0036-8733, Vol. 304, Nº. 2, 2011, págs. 32-32
• Idioma: inglés
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• Resumen

  • The article discusses research by biogeochemists at the University of California, Riverside, investigating the link between the glacial runoff and the rapid evolution of animal life. Topics include the research methodology the team used to calculate the phosphorus concentrations of oceans one billion years ago, which is a key nutrient in biological systems.