At the other, global temperature specialist John Christy argued for a new modelofassessment based on the wiki approach, Mike Hulme called for the panel to split into three separate expert organisations, and Eduardo Zorita proposed a major upgrade to transform the institutionally slim IPCC into a fully-fledged expert UN agency.
An integrated-assessment model quantifies the marginal damages of air pollution emissions for the US which are multiplied times the quantity of emissions by industry to compute gross damages.