According to a new survey by the Charities Aid Foundation (CAF), the UK is the fifth most charitable nation in the world. The survey, called the World Giving Index 2011, shows that the US is the most charitable country, while Ireland is second and Australia third. (..) The index demonstrates that the world has become a more charitable place over the last 12 months – with a 2% increase in the global population 'helping a stranger' and a 1% increase in people volunteering.