Difficulties with fusion

• Main problem is how to contain the reacting plasma at a high enough temperature ti prevent the plasma from cooling down
• An advantage of fusion is that the isotopes of hydrogen, deuterdeuterium and tritium are used- these are widely available at the constituents of sea water and are so nearly inexhaustible, furthermore fusion does not emit carbon dioxide or other greenhouse gases into the atmosphere since its major by product is helium, an insert non toxic