The Gary C. Comer Geochemistry Building is Lamont-Doherty’s state-of-the-art laboratory building. Researchers in the Geochemistry Division seek to understand Earth’s environments by studying its history and the processes, past and present, that have governed these environments. Using advanced chemical and isotope analyses, division scientists study samples of air, water, biological remains, rocks and meteorites in order to elucidate a broad range of scientific issues.