Carly Buchwald’s group uses the abundance stable isotopes of N and O in nitrite and nitrate to interpret nitrogen biogeochemistry in the environment. They measure the isotope systematics of relevant ...

Life on Earth has always depended on nitrogen. As a building block of proteins and DNA, nitrogen is essential to all living ...

Stable isotopes have helped uncover migratory routes, trophic levels, and the geographic origin of migratory animals. They can be used on land as well as in the ocean and have revolutionized how ...