New York Times: “Ads mentioning energy, climate change and the environment — over 125,000 spots and climbing on the Senate side — have surged to record levels during the 2014 midterm election cycle, reflecting the priorities of some of the nation’s wealthiest donors, with Democrats now pouring millions into campaigns to match Republicans, according to an analysis by Kantar Media/CMAG, which tracks political advertising.”

“In Senate races in the general election, the analysis found, energy and the environment are the third-most mentioned issue in political advertisements, behind health care and jobs.”