Monsanto Research Center opens providing much needed expansion for the Garden’s Research department and herbarium. The Monsanto Center, houses the Garden’s research division, one of the world’s most active and important scientific research operations, including its herbarium, which contains more than 5 million plant specimens, and its highly valued research library. In addition to a staff of more than 150 research scientists, associates and graduate students, hundreds of American and foreign scientists conduct short- and long-term biology projects there each year. A model of "green architecture," this building brings together in one structure environmentally friendly technology, from the siting of the structure and the materials used in construction, to the carpeting, paint, and even the furniture. The sustainable, environmentally sensitive design used recycled and recyclable materials and developed an environmentally sensitive energy system throughout the structure.