Biogeochemist is a relatively niche and specific term that describes someone who studies the processes and interactions between the biological, geological, and chemical components of the Earth system. Synonyms for this term might include ecosystem scientist, earth system scientist, systems ecologist, or biogeochemical modeller. These scientists investigate how nutrients and compounds cycle through natural systems, and how humans may be impacting those systems through activities such as agriculture, mining, and urbanization. From understanding the impact of land use change to assessing the effectiveness of carbon sequestration efforts, biogeochemists play an important role in advancing our understanding of the Earth system and our ability to sustainably manage it.