Establishes a moratorium on the adoption and/or implementation of certain local laws or ordinances, or certain rules or regulations, by a city with a population of one million or more, related to achieving certain reductions in greenhouse gas emissions.

The bill establishes a temporary halt on new local laws or regulations in large cities, specifically those with populations over one million, that aim to reduce greenhouse gas emissions. This means that these cities cannot adopt or implement certain environmental measures for a specified period.

Supporters of the bill argue that it provides necessary time for cities to assess the impacts and feasibility of proposed environmental regulations. They believe this pause will allow for more thorough planning and consideration of economic factors before implementing potentially disruptive changes.

Critics contend that this moratorium delays vital action needed to combat climate change and reduce greenhouse gas emissions. They argue that it undermines local efforts to address environmental issues and could hinder progress towards sustainability goals.