10 smart tips to live better – and help conserve Earth's resources

10 smart tips to live better – and help conserve Earth's resources
- On March 24, Hong Kong took part in the global movement Earth Hour for the 10th year – again inviting the city's residents to turn out the lights for 60 ... That one hour was, of course, a symbolic event but, more importantly, it is a show of solidarity among people around the world concerned about the ...