Mayor Bill de Blasio announced a plan to install $100 million worth of alterations and improvements to make buildings in some 300 public housing developments more efficient.<div><a href="http://www.nytimes.com/2015/04/10/nyregion/new-york-plans-upgrades-for-housing-projects-to-reduce-emissions-and-utility-costs.html?partner=rssnyt&amp;emc=rss" target="_blank">Original link</a></div><div>Original author: MIREYA</div>