The California Emission Estimator Model has been developed by the California Air Reources Board and in cooperation with AQMDs to replace and improve Urbemus, and to augment emission estimates by including greenhouse gas emission estimates. CalEEMod calculates criteria pollutant and greenhouse gas (GHG) emissions from a variety of land uses, including residential and commercial [...]
Berkeley Earth Surface Temperature Project Tests Critiques of Climate Data, Confirms Warming Trend.
Berkeley Earth Surface Temperature (BEST) project A new set of studies produced by the BEST project — which has attracted widespread attention in part because it is funded by the Koch Foundation and led by prominent climate skeptic Richard Muller — confirms that global surface temperatures have risen by approximately 1degree C since the 1950’s, [...]
California Air Resources Board Launches GHG Cap & Trade
California Adopts Final Cap-and-Trade Program Rules. On October 20, the California Air Resources Board (CARB) approved final rules for the state’s cap-and-trade program, beating a October 28 deadline for codification of any rules that are to take effect the following year. CARB also issued a 14-page resolution demonstrating its intention to amend the rules as necessary [...]
ZMassociates performing PM10 & PM2.5 Conformity Analysis
ZMassociates has been tasked to perform one of the first, if not the first, U.S. EPA 2012 required Conformity Analysis of project PM10 & PM2.5 emissions for a planned California highway project in the High Desert Corridor. This project will require developing an extensive mobile and stationary source emission inventory over the entire 60+ mile [...]
Site Redesign

We have redesigned our site to provide a more interactive platform for our visitors, clients, employees, and friends. Please let us know what you think of our changes by providing comments or feedback. Adding a Blog feature will increase two way communication with our community and will add another opportunity to share information. Please join [...]