The California Supreme Court has overturned the environmental impact report for a mixed-use development project, holding that the EIR inadequately explained the human health consequences of significant air pollutant emissions that would result from the development.  Sierra Club v. County of Fresno, Cal. Supreme Court Case No. S219783 (Dec. 24, 2018).    In so doing,

A court of appeal today rejected a CEQA challenge to an air pollution control district’s published thresholds of significance for air pollution impacts.  California Building Industry Association v Bay Area Air Quality Management District, No. 135335 (First District, July 13, 2013).  

The thresholds, contained in the District’s “CEQA Air Quality Guidelines,” were first