The foolish fallacy of cold fusion
"Nuclear fusion, unlike our current terrestrial source of nuclear power — nuclear fission — involves no radioactive waste and no threat of a meltdown. Both the products and reactants of nuclear fusion processes are expected to be clean and pose no threat of a runaway, uncontrolled reaction.
Couple that cleanliness and safety factor with the incredible efficiency of nuclear power — multiple times as energetic per kg as fission and thousands of times more efficient than chemical sources — and it’s no wonder that it’s viewed as the holy grail of energy.”
If you can reach the fabled “breakeven point” of nuclear fusion, you’ll have opened up an entire new source of clean, reliable, safe, renewable and abundant energy. You will change the world. At present, fusion is one of those things we can make happen through a variety of methods, but — unless you’re the Sun — we don’t have a way to ignite and sustain that reaction without needing to input more energy than we can extract in a usable fashion from the fusion that occurs. One alternative approach to the norm is, rather than try and up the energy released in a sustained, hot fusion reaction, to instead lower the energy inputted, and try to make fusion happen under “cold” conditions. If you listen in the right (wrong?) places, you’ll hear periodic reports that cold fusion is happening, even though those reports have always crumbled under scrutiny. Here’s why, most likely, they always will.