•Green computing or green IT, refers to environmentally sustainable computing or IT.
•It is also defined as "the study and practice of designing, manufacturing, using, and disposing of computers, servers, and associated subsystems—such as monitors, printers, storage devices, and networking and communications systems—efficiently and effectively with minimal or no impact on the environment”
•Green computing is the environmentally responsible use of computers and related resources. Such practices include the implementation of energy-efficient central processing units (CPUs), servers and peripherals as well as reduced resource consumption and proper disposal of electronic waste (e-waste).
One of the earliest initiatives toward green computing in the United States was the voluntary labeling program known as Energy Star. It was conceived by the Environmental Protection Agency (EPA) in 1992 to promote energy efficiency inhardware of all kinds. The Energy Star label became a common sight, especially in notebook computers and displays. Similar programs have been adopted in Europe and Asia. Government regulation, however well-intentioned, is only part of an overall green computing philosophy. The work habits of computer users and businesses can be modified to minimize adverse impact on the global environment. Here are some steps that can be taken: •Power-down the CPU and all peripherals during extended periods of inactivity. •Try to do computer-related tasks during contiguous, intensive blocks of time, leaving hardware off at other times. •Power-up and power-down energy-intensive peripherals such as laser printers according to need. •Use liquid-crystal-display (LCD) monitors rather than cathode-ray-tube (CRT) monitors. •Use notebook computers rather than desktop computers whenever possible. •Use the power-management features to turn off hard drives and displays after several minutes of inactivity. •Minimize the use of paper and properly recycle waste paper. •Dispose of e-waste according to federal, state and local regulations. •Employ alternative energy sources for computing workstations, servers,networks and data centers.
The GOALS of green computing are similar to green chemistry : 1.Reduce the use of hazardous materials.
2.Maximize energy efficiency during the product's lifetime
3.Promote the recyclability or biodegradability of defunct products and factory waste. 4.Research continues into key areas such as making the use of computers as energy-efficient as possible, and designing algorithms and systems for efficiency-related computer technologies.
Getting started with green computing
•To explore how green computing is used in the enterprise, here are some additional resources: •Green IT guide for the midmarket: In this guide, get information about green computing tools and products available to improve energy efficiency in your data center. •Green computing ezine: Today green is everywhere, in the mouths of marketers and the minds of CEOs. Learn how to tame the environmental beast with the resources in this ezine.
Regulations and industry initiatives
The Organisation for Economic Co-operation and Development (OECD) has published a survey of over 90 government and industry initiatives on "Green ICTs", i.e. information and communication technologies, the environment and climate change. The report concludes that initiatives tend to concentrate on the greening ICTs themselves rather than on their actual implementation to tackle global warming and environmental degradation. In general, only 20% of initiatives have measurable targets, with government programs tending to include targets more frequently than business associations.
Many governmental agencies have continued to implement standards and regulations that encourage green computing. The Energy Star program was revised in October 2006 to include stricter efficiency requirements for computer...