The document discusses green computing which it defines as the study and practice of designing, manufacturing, using, and disposing of computers and associated equipment efficiently and with minimal environmental impact. It provides tips for green computing such as using LCD monitors instead of CRTs, powering down peripherals when not in use, properly disposing of e-waste, measuring power usage effectiveness, managing airflow, adjusting thermostats, and using free cooling to remove heat from facilities without using chillers. Green computing saves the environment, is cost effective, reduces waste, and provides a safer environment for younger generations.