[1] As of 2015 he is a professor of Global Food Security and Sustainability at the University of British Columbia[2][3] Ramankutty studies changes in land use and agricultural practices, and the effect on global food production.
After graduation Ramankutty worked as an assistant research scientist on a project at the Nelson Institute Center for Sustainability and the Global Environment, University of Wisconsin-Madison, on the development of the first worldwide land use maps.
[5] Information from these studies was used in the National Geographic Atlas of the World, 8th edition.
[6] In 2006 he became an assistant professor in the McGill University geography department,[7][8] and in 2014 moved to the University of British Columbia as a professor of global food security and sustainability.
Ramankutty has published more than 100 articles on various topics about land use and food security.