Just to give a little insight, the "containment" isn't about safety, it is about squeezing everything together. It goes away, so does the reaction. It fizzles,

Just to give a little insight, the "containment" isn't about safety, it is about squeezing everything together. It goes away, so does the reaction. It fizzles, it doesn't blow up. The fusion in the sun is essentially gravity+mass applying so much pressure that stuff fuses. Fusion hypothetically is by far the safest means of getting power we will ever work out. Global warming isn't about heat generation. The sun (the free fusions reactor in the sky) sends more heat our way then we could ever hope to produce. It is heat dissipation that is the problem. Greenhouse gasses prevent the sun's heat from dissipating. This is the problem, we will only make it better by stopping greenhouse gas emissions.