He is very plausible. However, another video of his I watched a few days ago makes me wonder.
In it, he claimed that Bill Gates was employing scientists to work out how to enclose the planet in a dust cloud to prevent the sun’s ray reaching earth and thus prevent global warming. According to Dr. Coleman the plan is to have airliners flying - his words- twelve miles high releasing dust to create a blanket. One small problem. Twelve miles is over 60,000 feet. There isn’t a single airliner in the world that can get anywhere near that sort of altitude, which is the province of, relatively speaking, a few military aircraft.
According to Dr. Coleman, one of the effects of the dust blanket which is essential to Bill Gates thinking is that it will result in many (I think he said many millions, but from memory won’t claim he did) deaths, thus easing the pressure on the planet’s resources.
Dr. Coleman is a conspiracy theorist par excellence with an engaging manner
Mike