I want to know the answer to the following question:
What percent reduction of greenhouse gases does Mayor de Blasio want to see by 2050?
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?