Communication (from Latin commūnicāre, meaning "to share") is the act of conveying intended meanings from one entity or group to another through the use of mutually understood signs and semiotic rules.
Radiation isn't the only problem of burying radioactive waste deep underground — waste also produces dangerous gases. An EU-funded project has forged a better understanding of how waste gases flow around and out of geological repositories to help national organisations ensure the process is safe.