" "Oxygen Measurements Yield Greenhouse Clues" Science Daily reports, "As levels of the greenhouse gas carbon dioxide rise, concentrations of oxygen in our air have fallen."
(Science Daily; reports; As levels of the greenhouse gas carbon dioxide rise, concentrations of oxygen in our air have fallen) Context(Science Daily reports,List([47, 68))):(concentrations of oxygen in our air; have fallen; )
Science Daily reports,List([47, 68))
Science Daily concentrations of oxygen in our air
reports have fallen
As levels of the greenhouse gas carbon dioxide rise, concentrations of oxygen in our air have fallen