We now know that prominent scientists were so determined to advance the idea of human-made global warming that they worked together to hide contradictory temperature data. But for two weeks, none of the networks gave the scandal any coverage on their evening news programs. And when they finally did cover it, their reporting was largely slanted in favor of global warming alarmists. The networks have shown a steady pattern of bias on climate change. During a six-month period, four out of five network news reports failed to acknowledge any dissenting opinions about global warming, according to a Business and Media Institute study. The networks should tell Americans the truth, rather than hide the facts.