Carbon dioxide emissions from the world&#8217;s energy producers stalled in 2014, the first time in 40 years of measurement that the level did not increase during a period of economic expansion, the International Energy Agency says.<div><a href="http://www.nytimes.com/2015/03/14/science/emissions-by-makers-of-energy-level-off.html?partner=rssnyt&amp;emc=rss" target="_blank">Original link</a></div><div>Original author: JOHN</div>