No excuses: Cut carbon dioxide emissions now, scientists urge

Recently, several scientific studies have concluded that the global climate is less sensitive to the greenhouse gas carbon dioxide than previously believed. Other studies also found that cuts to short-lived pollutants such as soot could temporarily slow the pace of warming.

Neither, however, are reasons to delay weaning the world off fossil fuels in a bid to curb global warming, according to a pair of perspective papers released Thursday.