Complex sentence: The climbing team, consisting of Boardman, Chris Bonington, Al Rouse and Joe Tasker, was supplemented by cameraman, Jim Curran, and a medical team carrying out research on the effects of altitude on expedition members.
Split into simpler sentences: The climbing team consisted of Boardman, Chris Bonington, Al Rouse and Joe Tasker. In addition, there was a cameraman, Jim Curran, and a medical team carrying out research on the effects of altitude on expedition members.