I want to know the answer to the following question:
What legal case sought to compel the Environmental Protection Agency to regular greenhouse gases?
All the background I'm provided with is that "Mayor Bill de Blasio has committed to an 80% reduction in greenhouse gas emissions between 2014 and 2050 to reduce the city's contributions to climate change, beginning with a comprehensive "Green Buildings" plan.". Is that enough to answer the question?
Answer: no