11 certa conferenceBrownfield risk - a look at the risks of brownfield projects. Central London. Contact CERTA on 020 7903 6522 or www.certa.com/events 23 cief workshopClients: constructing for sustainability as well as for profit. Construction Industry Environmental Forum (CIEF) workshop on the latest thinking in sustainability, and launch of reports. London. Contact CIRIA on 020 72228891 or www.ciria.org/cief_event_230603.htm 24-26 cedia …