To engender and raise awareness to the geosciences, a geoscience research project and a corresponding geoscience internship program were designed around plume dispersion dynamics within and above the New York City subway system. Federal, regional, and local agencies partnered with undergraduate students from minority-serving institutions to conduct the largest plume dispersion study ever done in a complex, dense, urban-coastal metropolis. The students were engaged in an array of geoscience activities within the confines of geoscience learning communities. Assessment results indicate that the geoscience exposure and experience helped to stimulate and proliferate geoscience awareness and knowledge among the undergraduates.