what is Sustainable ( green ) Architecture??

Nowadays there is a new trand off architecture designs it's cqlled sustainable or green architecture
Sustaianable architecture appear for answer the problem of global warming.

green approach to the built environment involves a holistic approach to the design of buildings. All the resources that go into a building, be they materials, fuels or the contribution of the users need to be considered if a sustainable architecture is to be produced. Producing green buildings involves resolving many conflicting issues and requirements. Each design decision has environmental implications. Measures for green buildings can be divided into four areas:

• reducing energy in use
• minimising external pollution and environmental damage
• reducing embodied energy and resource depletion
• minimising internal pollution and damage to health

Landform/Microclimate Topography  Light-colored surfacing Vegetative cooling Wind buffering/channeling Evaporative cooling	Site Design Solar orientation  Pedestrian orientation Transit orientation Micro climatic building/siting	Infrastructure Efficiency Water supply and use Wastewater collection Storm drainage Street lighting Traffic signalization Recycling facilities
Land-Use Use density  Use mix  Activity concentration	Transportation  Integrated, mulimodal street network Pedestrian Bicycle Transit High-occupancy vehicles Pavement minimization Parking minimization/siting	On-Site Energy Resources Geothermal/groundwater Surface water Wind Solar District heating /cooling Cogeneration Thermal storage Fuel cell power

pictures of some green buildings