Photographer talks of bloodbath in Sicily 20 years after murder of anti-mafia judge Giovanni Falcone

There is much being said, blogged, filmed, and even drawn, about the situation in Syria, where death is a daily fact of life.

What is it about New Year's Eve that prompts us to do (or at least toy with the idea of doing) something good or perhaps more meaningful with our lives?

Gwynne Dyer looks back at 2011's global events, from the Arab Spring to the euro crisis and climate change.