Life in Earth’s primordial sea was starved for sulfate
Friday, November 7, 2014 - 17:00
in Earth & Climate
Earth’s ancient oceans held much lower concentrations of sulfate -- a key biological nutrient -- than previously recognized, according to new research. The findings paint a new portrait of our planet's early biosphere and primitive marine life. Organisms require sulfur as a nutrient, and it plays a central role in regulating atmospheric chemistry and global climate.