Environment

Can New York Make Buildings Super-Efficient, Fast?

By 2030, the city’s large buildings must cut their carbon emissions by 40 percent. Here’s how that can happen.
Downtown Manhattan photographed from the Empire State Building in 2015.Carlo Allegri/Reuters

New York City passed the most aggressive climate bill in the nation in April, and the city got it done in a truly New York way.

The Climate Mobilization Act is the city’s effort to abide by the Paris climate-change agreement even after the Trump administration withdrew the U.S. from the global accords. Before its abrupt about-face, America’s plan had been to cut carbon emissions by 80 percent by the year 2050. New York is taking up that pledge by introducing new regulations to address the energy performance of buildings.