The TEEB for Business Coalition have released a report conducted by Trucost “Natural Capital at Risk – The Top 100 Externalities of Business”. It estimates that the global top 100 environmental externalities are costing the world economy around $4.7 trillion a year. The majority of environmental externality costs are from greenhouse gas emissions (38%) followed by water use (25%); land use (24%); air pollution (7%), land and water pollution (5%) and waste (1%). The study ranks the top 100 impacts in over 500 business sectors, broken down by region, to provide a platform for companies and investors to assess exposure to unpriced natural capital, both directly and through supply chains and holdings. The primary production (agriculture, forestry, fisheries, mining, oil and gas exploration, utilities) and primary processing (cement, steel, pulp and paper, petrochemicals) sectors analyzed are alone estimated to have externality costs totalling US$7.3 trillion, which equates to 13% of global economic output in 2009.  The authors find that no high-impact region-sectors generate sufficient profit to cover their environmental impacts. Subject to adaptive capabilities, this will cause them to pass on these costs to customers. Region-sectors most at risk include coal power generation in Eastern Asia and Northern America, wheat farming in Southern Asia, and cattle ranching in South America and Southern Asia.