Greenhouse gas inventory for Durango State was performed taking 2005 as base year and its tendency for 2005-2008. Only CO₂, CH₄, and N₂O were considered in this calculation as the most important direct GHG, and the total values are expressed as Gigagrams of equivalent CO₂. The annual average results for each of the categories were: Energy (11,400.54), Agriculture (2,664.90), Industrial Processes and Solvents (874,80), and Waste (693.78); with an increasing trend from 2005 through 2008 equal to 28.25%. In the case of Land Use, Land-Use Change and Forestry category a net capture balance (-4,007.01) and total emission (4,298.18) was estimated resulting in 272.17 Gg CO₂ eq as the total balance. Total emissions for 2005 and 2008 were 13,474.04 and 17,281.12, respectively; with an average of 15,906.19 Gg CO₂ eq for the same period. Indirect gas emissions of NO_x, CO, NMVOC, and SO₂, were also estimated and expressed as Gg; where CO was the most abundant emission. Mitigation measures were proposed based on identified emission sources for each category.