Karina is a freshman Biological Engineering student at the University of Arkansas. Her interest in urban sustainability and ecology began when she realized just how fortunate she was to live in such a green and natural state. The few times that she has visited an actual city have made her realize all that she takes for granted in her small town. Karina wants to help improve city life by implementing more efficient and reliable ways to get rid of human waste and trash. She is also interested in engineering cost-efficient ways to have green rooftops, which not only help keep the urban atmosphere clean but also reduce the temperature rises typical of cities.