year 2000 iowa greenhouse gas emissions inventory center for energy & environmental education university of northern cedar falls a report the department natural resources funded by us protection agency january 2005 prepared tracy l wollin william m stigliani disclaimer this document was with grant from epa however any opinions findings conclusions or recommendations expressed herein are those authors and do not necessarily reflect views page numbers some graphics in pdf version may differ microsoft word electronic printed copies corrections have been made to figure es 8 on lengthening bar efficiency represent an offset 5 3 million mtce executive summary description potential savings 2 9 37 91