User Guide

Screen 3: Analyze

This screen displays the total emissions from the project, and from each of the project elements.

What You See

This screen shows the MTCO2e/year emitted by the project as built under “Business as Usual” conditions, i.e., the 2013 California Title 24 Building Code and other adopted codes and standards. The emissions are divided into five of the six CEQA categories: Energy, Transportation, Water, Solid Waste, and Construction. Vegetation is under development at this time.

The thermometers on the upper right show the emissions for each Land Use Type that has been selected for the project. This is useful for evaluating project re-design to minimize CO2 impact. 

Hovering over each of these categories will display an enlarged view of the emission categories of each Land Use Category’s emissions for the total project. Numerical totals for the project and per Service Population are shown for side by side comparison at the bottom of the screen.

All emissions are compared to a threshold of significance of MTCO2e/year per service population which has been generally accepted in California. Although standards for individual jurisdictions have not been set statewide, California EIR experience shows the convergence of threshold figures around the number shown.

How to Use This Screen

Evaluate the project’s emissions relative to the threshold reference line (shown in red). This provides an indication of the degree of mitigation needed to meet the threshold of significance.

  • In 2010 SCAQMD proposed a 2020 Threshold of Significance of 4.8 MTCO2e/year/Service Population. The 1990 statewide inventory level was 4.8 MTCO2e/ SP. San Diego has a bright line threshold of 2500 MTCO2e for a project, and an efficiency threshold of 4.46 MTCO2e/.yr/SP 

You should take check with the local jurisdiction to determine if they have adopted or require a specific threshold of significance. 


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