Earlier this month, New York City released the first guidelines for Local Law 97, landmark climate legislation that requires buildings to cut their emissions 80 percent by 2050. The measure has attracted significant attention from environmentalists and the real-estate industry. In November, hundreds attended a hearing to weigh in on the city’s plans. The response to these new guidelines was a reminder of just how difficult it can be in our city—where sewage floods the streets on moderately rainy days and trash-gorged rats never seem to sleep—to tackle climate and environmental challenges, even as they grow more urgent. So take our quiz to see how much you know about the New York region’s climate footprint, its environmental challenges, along with the steps elected officials have been taking to change it.