Add Yahoo as a preferred source to see more of our stories on Google. An employee of the Uniper energy group stands next to a pipe on the site of the company's hydrogen storage facility. The facility ...

Germany is working on legislation to enable the use of the much-discussed technology of underground carbon storage, a top government official said Thursday, adding that it is preferable to releasing ...

A nearly 20-mile underground relic of Nazi tunnels, shafts, underground railway stations and combat facilities in Poland can now be toured after being transformed into an army museum. The subterranean ...

Add Yahoo as a preferred source to see more of our stories on Google. A view of the above-ground part of the Uniper energy group's hydrogen plant. The facility will be used to test the storage of ...