After reading the article and looking into this Dr. Busby I feel like caution is necessary.

While I wouldn't put it past the imperialists to use nuclear weapons, the author has taken some questionable positions in the past. The again said positions are merely not in line with the narrative the imperialist project presents, so maybe there's nothing to be concerned about here.

The UN for example stated in 2006 that his claims of DU munitions being used In Kosovo and Iraq (part two) are empirically false, but since then the US and NATO have admitted to it.

He has a very strange theory of radiation effects on humans, one which doesn't at all match with long established evidence, the mainstream theory, nor more modern theories.

He also claimed the Fukushima disaster (and Chernobyl) was much worse than it's generally agreed to be, and was selling some sort of anti-radiation pill of questionable effectiveness to Japanese people in the area.

The people who already mentioned cold fusion in this thread have made good points as well. I can't find much on this Del Guidice character but there's a bit in the German Wikipedia entry noting that his and his collaborator Giuliano Preparata's ideas on cold fusion and the "memory of water" were not well accepted amongst peers.