Fusing two hydrogen nuclei releases an enormous amount of energy. It is the type of nuclear reaction that in nature powers the sun and other stars. Its great advantage is that it does not emit greenhouse gases, heavily polluting or highly radioactive substances, which makes it very attractive as an energy source. On the downside, it's very difficult to replicate the process artificially on earth, because it means generating plasma at extremely high temperatures of millions of degrees. To reproduce it and make it usable, they're looking into magnetic confinement technology, which, as its name suggests, uses incredibly powerful magnetic fields to control the plasma that hosts the fusion. The plasma forms from the nuclei of two hydrogen isotopes, deuterium and tritium. These nuclei each hold a proton and one or two neutrons. The sun, however, uses protium, the most abundant hydrogen in the universe by a long chalk (99.98%), which contains no neutrons whatsoever. In any case, whatever their form, two hydrogen nuclei fused together produce energy, neutrons and helium, a noble gas that is utterly harmless. In other words, they make energy with zero impact, which is why we're focusing on magnetic confinement fusion and collaborating with big public and private research bodies to develop it. We see it as a milestone on the path to decarbonization.