There is no shortage of activities, from complete projects which require coordination to simple occasional tasks which may be carried out by all.
It is possible to become a volunteer and help with the organisation even if you are not based in the Geneva region. Many things may be done remotely. For that matter, there is a host of communication methods available which will allow you to exchange with all the team members.
Want to be a volunteer during the LSM 2012 to help the organization? There is no shortage of activities, a few simple occasional tasks which may be carried out by everyone.