Explainer: What is cap-and-trade?


Pennsylvania’s efforts to comply with the federal plan to curb power-plant emissions could be delayed by an amended fiscal code, critics say. (Emma Lee/WHYY)

(Undated) — Pennsylvania environmental regulators are studying a citizen-led petition to implement a cap-and-trade program in the state, with the goal of dramatically cutting climate-damaging greenhouse gas emissions.

So, how does cap-and-trade work?



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