Can nuclear waste be stored safely in horizontally drilled fracking tunnels? Well, maybe…

Nuclear waste experts have contemplated deep-drilling for half a century, mostly by proposing to bore straight down into granite and crystalline rock. But tests of these techniques haven’t gotten very far, being blocked, on occasion, by the public. These approaches have been deemed costly and possibly unsafe, because stacking containers on top of one another puts so much weight on the bottom drums. The Mullers say it’s much cheaper and safer to drill horizontal tunnels, and to do so in shale. They can fit the typical waste canisters (each 1 foot in diameter and 14 feet long) quickly and safely into shale tunnels, they say, given advances in fracking equipment. “Drilling the holes takes a couple weeks at most,” says Elizabeth…

The elder Muller first made his name dealing with radiation much farther away. As a professor at the University of California at Berkeley and senior scientist at the Lawrence Berkeley National Laboratory, Richard did that pioneering research on dark energy and cosmic radiation, including work on projects that eventually earned Nobel Prizes. After he and Elizabeth co-founded Berkeley Earth, a nonprofit that measures global temperature and climate change, he went from being one of the most prominent global warming doubters to one of the loudest voices confirming that climate change is real and caused by humans.

The idea for Deep Isolation grew out of the climate change work. Richard and Elizabeth are convinced that shifting China from coal to natural gas should be a priority, and when their effort to form a gas fracking venture in that country bogged down, they applied their newfound knowledge of drilling techniques to nuclear energy. The Mullers argue that the world must increase its use of nuclear energy to slow climate change and say solving the waste problem would encourage adoption.