Bill Nye is a scientist. He studied mechanical engineering at the Cornell University and is a lecturer at Carl Sagan. He has a Bachelor of Science degree, which he was awarded in 1977. Additionally, Nye has an Honorary Doctor of science degree from the Willamette University.
Sort of, but not really. It depends on what your definition of scientist is. He is certainly not any real authority--he is more of an actor playing a scientist--hence all of his Emmy awards for acting, writing and directing. He is a more of a manufactured scientist, per say.
Would a real scientist make the following mistakes:
On March 12, 2011, Nye made an appearance on CNN to discuss the evolving nuclear incidents in Japan as a result of the devastating earthquake and tsunami there. Nye erroneously stated that cesium is used to "slow and control" the nuclear reaction. In reality, cesium (specifically cesium-137) is a nuclear fission product, not a control rod material. Nye also erroneously stated that the nuclear reactor involved in the Three Mile Island incident is still running (the reactor involved in the incident has been decommissioned, but there is a second reactor at the site that is still operating as of February 2014) and that the use of boron to slow the nuclear chain reaction is uncommon, when in fact boron-10 is commonly used in control rods, and is circulated in the coolant of reactors in the United States, as well as stored on site as a method of emergency shutdown.