"It's a challenging environment for staff, and they deserve our full support."

It is an incredibly challenging environment to work in, but time will tell the story.

It can also prove to be a more challenging environment.

The couple, who have no children, decided they wanted a more challenging environment.

They're also used to working in a much more challenging environment.

The people and the challenging environment makes a fun place to work.

The young man wanted to succeed in life, but he was confronted with a challenging environment.

Committee members developed plans to create a challenging and rigorous educational environment.

Both plant and animal species have adapted in many different ways to deal with this challenging environment.

These elections take place in a highly challenging environment, which we certainly acknowledge.