a project for the australian greenhouse office final report 1999 residential building sector gas emissions 1990 2010 isbn 1876536 25 x commonwealth of australia this work is copyright permission given fair dealing with material as permitted under legislation including purposes private study and research apart from those uses no part may be reproduced without prior written requests inquiries concerning reproduction rights should directed to manager communications gpo box 621 canberra act 2601 executive summary appendices are available on cd rom inserted inside back cover publication design wingrove photos courtesy housing industry association printed 100 recycled paper ii foreword though full effects gases earth s atmosphere not yet completely understood scientific evidence points discernible human influence global climate change has recognised need address concerns just perspective but also improve comfort built environment all