IT sectors chanting the 'green mantra'

With "climate change" being recognised as a major environmental problem facing the globe and toping the agendas in various summits,the corporates have started adapting the "go green" mantra.The word "green" is catching up fast with IT companies to renew to conserve the environment's resources and save energy cost.
Virtual machines
Virtualisation of data centre has allowed many users to reduce their hardware assets and use them more efficiently by running multiple "virtual machines" side by side on the same hardware. virtualisation allows the utilisation to increase by 30-40% and reduce costs-power,cooling, and hardware-by 30-70%.Virtual servers can also reduce carbon dioxide levels considerably.