To improve the eco-friendliness of libraries even more, some newly built libraries have incorporated sustainable building practices in their design. I read about two such libraries in the November 2007 issue of Incite, the magazine of ALIA, my professional association.
In late 2005, the New York City Council created a set of sustainable standards for public construction projects, making New York the first and largest school district to have green school design, construction, and operation guidelines required by law. 
The schools Whelan writes about are all in the US and have some or all of:
wind and solar power generation
geothermal heating and cooling systems
constructed wetlands that recycle water
exterior solar shading made from reclaimed timber
paints and furnishings made from low-volatile organic compounds
vegetable/kitchen gardens and composting
eco-friendly technology such as energy efficient flat-screen monitors .
It is no good just talking, writing or reading about sustainability. It requires us to do something toward that critical and vital end point – a sustainable world – so that we can all look our grandchildren in the eye with something like a clear conscience – Derek Wrigley 
For a number of years I’ve been interested in sustainable building design and I have a long term plan to build my own sustainable designed house. The first real-life example I visited was the Subiaco Sustainable Demonstration Home in suburban Perth. It was built by Subiaco Council, but is now privately owned. I’ve often wondered why more newly built houses aren’t designed using sustainable principles. I realise most such houses are individually designed by architects and this increases their cost, but some design aspects, such as passive solar principles, seem to me to be just common sense.