become involved

Their cooling effect is magnified when they become involved in making clouds, with an effect opposite to, but of the same magnitude as, that of the well-known warming greenhouse gases, such as carbon dioxide or methane.

When the two brothers become involved in programs inside the prison, they also make sure they are not leading the same group.

Criminal justice consultant and research fellow Lucy Baldwin told Woman's Hour there should be a "multi-agency response" as it will always be appropriate for one or another service to become involved.

It demonstrates that love, though perhaps the world’s most beautiful emotion, is not necessarily the most important one, at least not when oppressive politics become involved.

Separately, the FBI said it had become involved in the investigation into the Spirit shooting.