ice bucket challenge

Helen Mirren and Ringo Starr are among the celebrities supporting the 'day of giving' campaign

There are more efficient ways to give money to charity. Here's how maximise gain and minimise pain

Critics have lined up to lambast selfies and ice bucket challenges, but not everyone thinks they're all bad

Chilly charity stunt goes global as footballers nominate their team-mates and rivals

Internet is awash with videos of Justin Bieber and and Bill Gates drenching themselves with ice water