Hydrogen Seeps into Nooks and Crannies

Could hydrogen replace natural gas in the future? Aside from the question of whether this would always be the best choice for specific applications, the infrastructure that we are now using to store and transport natural gas is not readily usable for hydrogen. Because hydrogen is a much smaller molecule than natural gas, it can easily leak. Even worse, despite its small size, hydrogen can affect larger materials and make them as brittle as glass.