https://www.nature.com/articles/s41893-026-01797-9 “8 weeks after the implementation, traffic volumes declined by 10%, resulting in a 16–22% drop in emissions” #NYC #PublicHealth #CleanAir #CongestionPricing #climate
Ubiquitous data-driven framework for traffic emission estimation and policy evaluation - Nature Sustainability

Urban traffic emission estimates are often too coarse or slow to evaluate decarbonization policies. A study now fuses data from traffic cameras and mobile phones to estimate citywide emissions in near-real time, finding strong spatiotemporal variation and a 16–22% emission drop after congestion pricing.

Nature