How are group dynamics going to operate in such a closed environment?

They'd never be able to buy food for that many, not in a closed environment.

"They help because you are in a closed environment," he said.

The carbon-dioxide levels were currently fine, she added, though higher than outside the closed environment.

We've been traveling through space in a closed environment, growing from a few individuals to seven billion.

It's proving difficult to fight them in such closed environments.

There's something to be said for a closed environment and one provided by a singular company.

Let us therefore take great care with work in a closed environment.

Of course, we keep the earlier editions in a closed environment.

This is not an opportunity to talk about difficult matters privately or in a closed environment.