Nacu-Schmidt, A., Oonk, D., Pearman, O., Boykoff, M., Daly, M., McAllister, L., and McNatt, M. (2017). United States Coverage of Climate Change or Global Warming, 2000-2017. Center for Science and Technology Policy Research, Cooperative Institute for Research in Environmental Sciences, University of Colorado, Web. [Date of access.] http://sciencepolicy.colorado.edu/media_coverage.
Source: Tol, Richard S J (2017) The structure of the climate debate. Energy Policy, 104. pp. 431-438.