Today at Berkeley Lab

Fertilizer Use Responsible for Increase in Nitrous Oxide in Atmosphere

UC Berkeley chemists – including Berkeley Lab earth scientist Kristie Boering — have found a smoking gun proving that increased fertilizer use over the past 50 years is responsible for a dramatic rise in atmospheric nitrous oxide, which is a major greenhouse gas contributing to global climate change. “Our study is the first to show empirically from the data at hand alone that the nitrogen isotope ratio in the atmosphere and how it has changed over time is a fingerprint of fertilizer use,” said Boering, who lead the study. More>