"A Media Matters study found that most network nightly news programs this year are on track to offer no more coverage of global warming than they did in 2013. However, PBS NewsHour remains a notable exception, covering climate change more than any other network and interviewing the largest number of scientists on the topic.
During the first six months of 2014, PBS NewsHour produced more news that featured climate change than any other major network evening broadcast, continuing a trend that Media Matters identified in both 2012 and 2013. The program aired 28 stories that at least mentioned global warming, nearly as much as all coverage combined from ABC World News, CBS Evening News and NBC Nightly News during the same period, and four times the amount of coverage from ABC World News alone. Among all major nightly news programs, ABC by far offered its viewers the least coverage that gave any substantial mention of global warming, with only seven stories. While it is worth noting that NewsHour is an hour-long broadcast compared to the half hour broadcasts on the other networks, it nonetheless offered more than double the number of stories offered by its closest network news competitor, CBS Evening News."