A new report reveals that reducing class sizes in New York City public schools could result in nearly $2 billion in annual costs, as WNYC’s Jessica Gould reports. Meanwhile, Public Advocate Jumanne Williams interrogated the handling of last month’s air quality emergency by the Adams administration in yesterday’s City Council hearing. WNYC’s Michael Hill talks with him about what went down. Lastly, the city remembers the 46th anniversary of the 1977 blackout, an evening marked by sudden darkness, wide-scale disorder, and extensive looting following a destructive lightning storm.