Ice cores reveal a slow decline in atmospheric oxygen over the last 800,000 years (Science)

By Morgan Kelly, Office of Communications Princeton University researchers have compiled 30 years of data to construct the first ice core-based record of atmospheric oxygen concentrations spanning the past 800,000 years, according to a paper published today in the journal Science. The record shows that atmospheric oxygen has declined 0.7 percent relative to current atmospheric-oxygen … Continue reading Ice cores reveal a slow decline in atmospheric oxygen over the last 800,000 years (Science)