Nuclear Fusion Is Already Facing A Fuel Crisis

Nuclear fusion has encountered a shortage of tritium, the key fuel source for the most prominent experimental reactors.

In The South of France, ITER is inching towards completion.

Inside a donut-shaped reaction chamber called a tokamak.

Two types of hydrogen, called deuterium and tritium, will be smashed together until they fuse in a roiling plasma.

Releasing enough clean energy to power tens of thousands of homes—a limitless source of electricity lifted straight from science fiction.

Deuterium can be extracted from seawater.

Tritium—a radioactive isotope of hydrogen—is incredibly rare.

“It would be an absurdity to use dirty fission reactors to fuel ‘clean’ fusion reactors,” says Ernesto Mazzucato.