A former Rice president signed the Talloires Declaration in 1995 and the board of trustees adopted a sustainability policy in 2004. The university employs a full-time director of sustainability, two energy managers, and a recycling coordinator. From becoming eco-reps in dormitories to conducting carbon inventories in class, students are frequently involved in campus sustainability efforts. The 2007 summer common reading, Field Notes from a Catastrophe: Man, Nature, and Climate Change, by Elizabeth Kolbert, marks the beginning of a year-long series of activities devoted to the themes of humans, nature, and climate change.