Global warming 'hiatus' puts climate change scientists on the spot

It's a climate puzzle that has vexed scientists for more than a decade and added fuel to the arguments of those who insist man-made global warming is a myth. Since just before the start of the 21st century, the Earth's average global surface temperature has failed to rise despite soaring levels of heat-trapping greenhouse gases and years of dire warnings from environmental advocates. http://www.latimes.com/science/la-sci-climate-change-uncertainty-20130923,0,791164.story Story courtesy of The Los Angeles Times by Monte Morin