The signature theme of Data-Rich Environments leverages strengths in the mathematical sciences and provides completely new avenues for research in the social and behavioral sciences. The emergence of enormous amounts of data, from astrophysics and climate research to consumer purchasing information, presents new challenges in discovery informatics. At the same time, these massive data sets offer unprecedented opportunities for data-driven research in the social sciences and the humanities, allowing for much more comprehensive studies of human language, imagination, communication and behavior. Federal funding agencies have initiated major investments in this area; ISU and LAS are well positioned to shape the agenda of these programs. This theme also opens numerous paths towards constructive engagement with partners outside academia.