square feet by 2010 with sustainable development initiatives coming up a layman is very likely to show little interest in a speech or a discussion on green buildings solar energy can warm a building in winter homes in smaller towns generally have a big courtyard which helps in the circulation of air media obviously has a very crucial role to play the government should provide incentives and create awareness for recycling of materials the amount of energy needed to cool the building is enormous in a tier ii or tier iii indian town why will a person build a green home when the cost of construction is highp c jain of course we always need to look out for better options care should be taken to reduce the load of air conditioning on the power system houses in the rural parts of india are in any case green as far as the cost of construction goes a green building costs about 218 more than a conventional building k raheja group is constructing about forty green buildings across india it uses industrial byproducts emphasizes on recycling of waste water harvesting of rain water least use of airconditioning less production of carbon dioxide and tries to safeguard the environment in every possible way as geothermal energy is a water table driven source of energy tier ii and iii cities stand to gain the most firstly identifying a site for the construction of the building is very crucial et what is the primary consideration while making a green building it aims to bring down the level of pollution to about 5 of what it was in 1990 by 2012pankaj gupta india has got a very good portfolio in carbon trading pankaj gupta green buildings have the option of fresh air on demand idea is to boost occupant productivity there are various requisites for planning and constructing a green building ideally the energy used for cooling a green building should be obtained from solar voltaic cells installed in the building itself pankaj gupta yes india can certainly have two to three time zones like the united states to reduce energy leed rating can be applied for non air conditioned buildings too grey water water left after washing utensils and clothes can be used for gardening and flushing purposes pankaj gupta the cost of ownership is 70 in urban areas how is this balancedpankaj gupta technology has helped us to ease many difficulties in our life buildings at present are being constructed with lots of glass which in turn increases the temperature of the building the problem is with the metros as there is scarcity of land and more buildings are being constructed leading to a concrete jungle pc jain so airconditioning or otherwise is a not a topic of contention here north india experiences long hours of sunshine which could help in generating electricity with the help of photovoltaic cells what is being done to reduce green house gas emissions globallyp c jain carbon